Here are some makers and yoyos that are common for 0A these days (not an exhaustive list):
Fixed Axle Makers: a/Rt, Duncan, Fallen44, Freshly Dirty, Hildy Brothers, Jon Gates, O.U.T, Spinworthy, TMBR, Tom Kuhn, YoYoFactory
Modern Responsive Bearing yoyos: Basecamp Moonshine, Basecamp Sherpa, Basecamp Moonshine 2.0, CoreCo Alleycat, CoreCo Alleycat 650B, DocPop Weekender, DocPop x Zipline Strings DayTripper, Duncan AL Butterfly, Duncan Freehand 1 AL SB, G Squared Respawn & Respawn Lite, * ILYY Trvth, Luftverk Alpina XP47 & XP55, Luftverk Daytona, Luftverk Daytona SB Highwall, One Drop Deep State, One Drop Deeper State, Rain City Gamer, Rain City Delrin Gamer, Rain City x Doc Pop Pop Art, Outofhand Burner, Recess Quiz, RSO x Tom Kuhn Silver Bullet, Spencer Berry’s Theodore, Spencer Berry’s Walter, Spinworthy x MK1 Bloodcell, Spinworthy x MK1 metal Harbinger, SPYY FlyingV, TimCor Starfire, Timcore Starfire 2, Tom Kuhn Black Cat, Tom Kuhn Fat Cat, Tom Kuhn SB-2, Tom Kuhn Tom Cat, Toybania STOOPID, Toybania The Thing, YoYoFactory Confusion, YoYoFactory Confusion GT, YoYoFactory tiConfusion, * Zero Gravity Return Tops El Mijo/Poly Mijo/El Tio
I know I’m missing a lot, let me know who I need to add here please