On a more serious note, don't go for typical muscular 6'2 tattoo'ed fuckboy characters, which is a common theme here. Have pros and cons for your character traits to balance each other.
It's something tied to your own imagination and likings, here are some quick thoughts:
- Illegal Chinese immigrant
- Mentally ill with multiple personalities
- A conspiracy theorist who hosts podcasts, events, etc..
- Soccer mom with a minivan
- Mute character
- Educated scientist
- Boomer character, as mentioned in the topic before