So it first started with Magnetic by wage war and it stayed like that for a while until Undefeatable from sonic frontiers came along and overshadowed it, it also didn't really suit my character though as well, then I came across bury the light that it overshadowed undefeatable but then I started getting into linkin park and the official theme of my OC that also suits him is The emptiness machine by linkin park

BTW I still listen to these frequently, I may change the main theme in the future if I find a song better then the emptiness machine but its jot happening its just not