If you are wondering what the top players use, here are a few of the current (and recently retired) players' racquets, strings and tensions:
Carlos Alcaraz
Babolat Pure Aero VS
Babolat RPM Blast 55lbs mains/ 53lbs crosses
Nicolas Almagro
Volkl Super G10 Mid 320
Luxilon Big Banger Original
Kevin Anderson
Dunlop Srixon Revo 2.0 Tour Luxilon Big Banger AlPower 49lbs
Felix Auger-Aliassime
Babolat Pure Aero VS
Babolat RPM Rough Yellow 55lbs
Ashleigh Barty
Head Gravity Pro
Head Hawk Touch 46 lbs / 44 lbs
Roberto Bautista Agut
Wilson Six-One 95
Luxilon 4G 48.5 lbs
Tomas Berdych
Head Graphene XT Instinct MP
Luxilon Big Banger Alu Power 55lbs
Belinda Bencic
Yonex Ezone DR 100
Yonex Poly Tour HS 125
Matteo Berrettini
Head Extreme Pro Stock TGT285.2
Signum Pro Firestorm 51 lbs
Simone Bolleli
Babolat Aero Storm
Babolat RPM Team 61/58lbs
Eugenie Bouchard
Babolat Pure Aero
Babolat RPM Blast 49lbs
Liam Broady
Dunlop CX 200
String / Tension?
Bob Bryan
Prince Tour 95
Prince Natural Gut/Prince Beast XP 56/52lbs
Mike Bryan
Prince Tour 95
Prince Natural Gut/Prince Beast XP 54/51lbs
Alexander Bublik
Yonex DR 98
Yonex PolyTour Pro 51 lbs
Dominika Cibulkova
Babolat Pure Drive
Luxilon Big Banger AluPower/Babolat VS Team 46/44lbs
Marin Cilic
Head Graphene XT Instinct MP
Babolat VS Team/Luxilon Big Banger Alu Power 61lbs
Kim Clijsters
Babolat Pure Drive Team
Babolat VS Touch 58lbs
Borna Coric
Yonex VCore Tour F 97
Yonex Poly Tour Spin
Maxime Cressy
Babolat Pure Aero
Solinco Tour Bite tension?
Juan Martin del Potro
Wilson [K] Six.One 95
Luxilon Big Banger Alu Power 62lbs
Alex de Minaur
Wilson Blade 98 V8 (16x19)
Luxilon 4G Rough 125/16 Gold 48.5lbs on both mains and crosses
Grigor Dimitrov
Wilson Pro Staff 97 18×17
Wilson Natural Gut /Luxilon 4G tension?
Novak Djokovic
Head Graphene XT Speed Pro 18×20
Babolat VS Team Natural Gut/Luxilon Big Banger Alu Power Rough 59/56lbs
Alexandr Dolgololov
Wilson Pro Staff 95S
Luxilon 4G/Wilson Natural Gut 62/59.5lbs
Jack Draper
Dunlop Srixon Revo CV 3.0
Babolat RPM Blast 54 lbs
James Duckworth
Babolat Pure Drive
Babolat VS Touch / Luxilon ALU Power Rough 48 lbs / 46 lbs
Sara Errani
Babolat Pure Drive Babolat Pro Hurricane 45/44lbs
Daniel Evans
Wilson NCode 6.1 95 18×20
Luxilon ALU Power Rough | Natural Gut 50 lbs
Roger Federer
Wilson Pro Staff RF97 Autograph
Wilson Natural Gut/Luxilon Big Banger Alu Power Rough 48.5/45lbs
David Ferrer
Babolat Pure Drive
Luxilon Big Banger Original 51lbs
Alejandro Davidovich Fokina
Head Extreme Pro Stock PT333.2
string/tension?
Fabio Fognini
Babolat Pure Drive
Babolat RPM Blast 59.5/55lbs
Taylor Fritz
Head IG Radical MP Pro Stock TGT260.3
Babolat VS Touch / Head Hawk 52 lbs / 50 lbs
Cristian Garin
Head Pro Stock PT313
Luxilon Big Banger Original 46 lbs
Richard Gasquet
Head Instinct Pro Stock PT161A
Luxilon Big Banger Original 53lbs
David Goffin
Wilson Blade 98 Pro Stock
Luxilon ALU Power 48.5 /46 lbs
Ernests Gulbis
Wilson Burn 100
Luxilon Big Banger Alu Power 66/64lbs
Simona Halep
Wilson Burn 100
Luxilon Big Banger Alu Power 55/53lbs
Daniela Hantuchova
Prince Textreme Tour 100
Babolat VS Touch 58lbs
Lleyton Hewitt
Yonex RDiS 100
Babolat VS Team/Luxilon Big Banger Alu Power 56lbs
Martina Hingis
Yonex Ezone DR100
Yonex Poly Tour Pro 125/Babolat VS Team 49/44lbs
John Isner
Prince Textreme Warrior 100
Tecnifibre Pro Red Code 62lbs
Ana Ivanovic
Yonex Ezone DR98
Wilson Natural Gut/Solinco Tour Bite 53/51lbs
Jelena Jankovic
Prince LS Red 105
Luxilon Big Banger Alu Power/Babolat VS Touch 57/55lbs
Angelique Kerber
Yonex VCore Si 100
Babolat VS Team/Yonex Poly Tour Fire
Johanna Konta
Babolat Pure Aero
Babolat VS Touch (Black)/Babolat RPM Blast
Sebastian Korda
Wilson Blade Pro Stock
Luxilon ALU Power 50 lbs / 47 lbs
Petra Kvitova
Wilson Pro Staff 97
Luxilon Big Banger Alu Power 57/53lbs
Nick Kyrgios
Yonex Ezone DR 98
Yonex Poly Tour Pro 125 53lbs
Sabine Lisicki
Yonex VCore Tour F
Yonex Poly Tour Spin/Prince Natural Gut 50lbs
Michael Llodra
Wilson Juice Pro BLX
Wilson Natural Gut
Feliciano Lopez
Wilson Ultra 100
Luxilon Alu Power/Babolat VS Team 51/46lbs
Paul-Henri Mathieu
Wilson Blade 98
Luxilon Big Banger Alu Power 62lbs
Daniil Medvedev
Tecnifibre Dynacore 305
Tecnifibre Razor Code Soft 48lbs
John Millman
Tecnifibre T Flight 315
Tecnifibre Black Code 67 lbs
Gaël Monfils
Artengo TR960 Control Tour
Luxilon ALU Power 57 lbs / 55lbs
Garbine Muguruza
Babolat Pure Drive
Luxilon Big Banger Alu Power 60lbs
Andy Murray
Head Graphene XT Radical Pro
Luxilon Big Banger Alu Power/Babolat VS Touch 62lbs
Li Na
Babolat Pure Drive GT
Babolat Pro Hurricane/Babolat Xcel 55lbs
Rafael Nadal
Babolat Pure Aero Play
Babolat RPM Blast 55lbs
David Nalbandian
Yonex VCore 98D
Luxilon Big Banger Original 64lbs
Kei Nishikori
Wilson Burn 100
Luxilon 4G/Wilson Natural Gut 49/51lbs
Cameron Norrie
Babolat Pure Control Tour
Luxilon ALU Power 44lbs
Flavia Pennetta
Wilson Blade 98 Pink BLX
Wilson Natural Gut 63lbs
Emma Raducanu
Wilson BLX Steam 100
Luxilon Alu Power Rough/ Luxilon Element
Agnieska Radwanska
Babolat Pure Drive Lite Babolat RPM Blast/Babolat VS Team
Milos Raonic
Wilson Blade 98 18/20
Luxilon 4G 44/46lbs
Tommy Robredo
Dunlop 4D 300
Luxilon Big Banger Original 52lbs
Laura Robson
Wilson Blade 98 Luxilon Big Banger TiMo/Wilson Natural Gut
Andrey Rublev
Head Gravity Pro Stock TGT344.4
Luxilon Adrenaline 57 lbs
Holger Rune
Babolat Pure Aero 98
Babolat RPM Blast tension?
Casper Ruud
Yonex DR 100 Plus
Yonex PolyTour Spin / Yonex PolyTour Pro 54 lbs
Diego Schwartzman
Head Radical Pro Stock TGT 260.2 XL
Luxilon ALU Power 50 lbs
Andreas Seppi
Pro Kennex Kinetic 5G
Luxilon Big Banger Alu Power 48.5 lbs
Denis Shapovalov
Yonex VCORE SV 95
Yonex Poly Tour Strike 46 lbs
Maria Sharapova
Head Graphene XT Instinct MP
Babolat VS Team/Babolat RPM Blast 62lbs
Jannik Sinner
Head Speed Pro Stock TFT 01.4
Head Hawk Touch 61 lbs
Robin Soderling
Head YouTek IG Radical MP
Luxilon Big Banger Alu Power 56lbs
Radek Stepanek
Head Graphene XT Speed Pro
Pacific Tournament Pro Natural Gut 55/53lbs
Samantha Stosur
Babolat Pure Storm
Babolat RPM Blast 49lbs
Dominic Thiem
Babolat Pure Strike 3rd Gen 18×20
Head Lynx Tour / Head Hawk 56 lbs / 54 lbs
Janko Tipsarevic
Tecnifibre T-Fight 325 VO2 Max
Tecnifibre Razor Code 57/55lbs
Bernard Tomic
Head Graphene XT Radical Pro
Babolat VS Team/Head Sonic Pro 53lbs
Stefanos Tsitsipas
Wilson Blade 98 18×20
Luxilon 4G / Wilson Natural Gut 57 lbs
Jo-Wilfrid Tsonga
Babolat Pure Aero
Babolat VS Team/Babolat RPM Blast 59.5lbs
Stanislas Wawrinka
Yonex VCORE 95D Babolat RPM Blast 62 lbs/ 57 lbs
Heather Watson
Babolat Pure Strike
Dunlop Black Widow
Serena Williams
Wilson Blade 104
Wilson Natural Gut/Luxilon 4G 66lbs
Venus Williams
Wilson Blade 104
Wilson Natural Gut/Luxilon 4G 66lbs
Caroline Wozniacki
Babolat Pure Aero
Babolat RPM Dual/Babolat VS Touch Natural Gut 54lbs
Alexander Zverev
Head Gravity Pro Stock TGT344.3
Head Hawk Touch / Babolat VS Touch 53 lbs / 55 lbs