Kars: Just use a stand and barrage and knock them back.
Good Counters: Sticky Fingers, Shadow The World, C-Moon, The Emperor, and Spin
GER: I'm pretty sure you can use a stand to attack while the GER is using return to zero. Maybe try spamming alot of knockback and moves and saving your rolls just incase the GER get's close to you and starts barrage spamming. Also you might not wanna try to barrage fight the GER
Good Counters: Shadow The World, GER, over heaven stands, MiH, and Star Platinum: Stone Ocean
STW: Most of the time you might be fighting against a bad STW user. Try spamming your barrage when you are close to them. Also try not to get far away from the STW because they might start spamming knives and stuff. When you think they are about to timestop try blocking. If you somehow get timestopped on get ready to roll or block.
Good Counters: SPTW, GER, MiH, C-Moon, Sticky Fingers, and Samurai
Over heaven stands: Just try to dodge their barrages and attacks. Try not to out barrage an over heaven stand because you might most likely lose.
Good Counters: STW, Kars, MiH, Sticky Fingers, GER, Killer Queen (No req), Star Platinum: The World, and Star Platinum: Stone Ocean
Timestop spammers: Just try blocking and being very offensive.
Good Counters: STW, Kars, MiH, Sticky Fingers, GER, Killer Queen (No req), Star Platinum: The World, and Star Platinum: Stone Ocean
I hope this guide sorta helps some people.