This seems fun.
My username is "Haikality", where I just put '-ity' prefix after my real name. The idea is to open my contents with "Haikality here!" as if it's like "Hi, Kality here!"
But then I cut it to just "kality" to make it easier for people to pronounce it in some platforms.
I use this username on almost all websites too: Youtube, Discord, AOTY, Spotify, Last.fm, Steam.