Ability to fly? Super strength? Immortal? Impenetrable skin? Teleportation? Laser eyes? Invisibility? Phasing through objects?
I think probably a super speeder like The Flash would be the way to go. However, I think The Flash has to consume thousands of calories a day to keep up with his metabolism so you’d probably spend most of the day eating so that would suck.
Maybe a Technopath; someone with the ability to control technology/computers. Probably be the easiest gift to live a normal life. Just pipe into bank servers and applications and add thousands of dollars into your account. Problem would be how attuned is your gift in order to get away with shit like that?
Invisibility would be tough in cold environments. In the summer you’d have to worry about mosquitos who don’t care you’re invisible. Infra-red goggles renders your invisibility moot to extreme preppers, LE, and militia. You also can’t escape making noise as you walk through the woods or stairs creaking as you go peeping tom in a girl’s house. Dogs also will notice you and go berserk because they can sense that something is wrong.
Speedsters would have to deal with wind chill factors or at extreme speed getting burned from air friction. Like if you’re going as fast as a space capsule re-entering orbit then you’re going to fry. So there’s an upper limit to how fast you can go even if you do have the ability to go faster.
Yeah I think the mental superpowers probably work better in a universe where normal physics, chemistry, and biology still works.
I like the technopath suggestion in the OP too.
Another useful one would be that ability to copy/do any physical skill after just watching it. Granted you’d also have to have the physical attributes to do so, like being flexible if you want to duplicate a yoga master or have flexibility and strength if you want to copy a gymnast. But that still leaves a lot of skills that you can do without having to practice for 10,000 hours.