Otherworld Valiants recommendations?? and who are they??

I just started playing this game again recently after not having played it for a long time so I'm not really sure who to choose. Any advice?

I'm really leaning towards Avril but that is purely because she is inspired by one of my favorite singers Avril Lavigne 💕💕. Speaking of which, all the bios say they are from our world but I can't figure out who is inspired by who?? Are they supposed to remind you of irl people?