Any name works aslong as you make a good reputation out of it. I can't come up with a good name for you, but I can suggest that you yourself should be able to find out what a 'good username' is for yourself
Depending on how you swing, there a multiple good/decent usernames. If your chaotic or an EPIC PRO GAMER them something with xXnameXx or x_name_x and for the name itself something epic like xXDestroyerXx or xXBeatproXx. ( x_thunder_x is epic as well) If you want the softer vibes, maybe ._.Ang3lic._., G0ldenWings, or S0ft.Cl0ud If you want something odd/weird, random letters, numbers, and symbols that could be a word or date can be cool as well. Via: $01d2010 or Dr3@m or just [|87 for plague doctor (if the symbols are aloud). If you want something original but not over the top, maybe something that is simple yet creative? Like Sun.flower or like Phanyonym. You can also be sentimental, but that is up to you. My username use to match my brothers which was 1sun1spirit, and I like stars to 1moon1spirit it is.
But it all up to you! Good luck on finding your new username!
Just another chaotic neutral member to the what's my gender again? club.
i myself wasted 1 hour to get this 4 letter username but there are 3 letters but idk how many left I'm saving up this username cause what if osu gets popular al the 4/3 letter names will get taken. it depends on you as long as the username Is meaningful for you