Shapeshifting would be fun, that or telekinesis

Superspeed- quick commute, get chores done fast, visit the world

I would like to know which scratch off lottery tickets are winners and for how much. If I had that power I could either go buy a couple of multi-million dollar winners and live a life of leisure or I could just perpetually pick up hundred dollar winners that are cashed out in the store and essentially go off the grid.

My family is full of mental health issues.

I’d like to fix that for them and myself, and for all the other sufferers out there.

Superhero ability? Healing. By far.

Flight. I wanna fly, but I guess you’d also need invulnerability since you would crash a lot

You invisible? Or you AND your clothes invisible?

Otherwise the in between phases can be awkward.

Photosynthesis

Is third person empath a thing? Like being able to have what one person is experiencing be felt emotionally by another person? I would do that, then really fuck up the day of an ICE agent.

Unrestricted body modification.

I would want to be able to switch bodies with people like in Freaky Friday, but I would want to control who and when.

I’d like to be able to touch people and feel their deepest pain and just heal that away with a compassionate thought.

Local area forced telepathic group chat - everyone in range can hear the surface thoughts of everyone else in range all at once

invulnerable. If you can’t hurt me you can’t stop me from making a point and swaying opinions.

Not one that I think I would actually want, but one I’ve thought a lot about is absolute bodily autonomy in the same way that you can control any aspect of your body consciously but without deliberate thought then it’ll default back to unconscious control. Want to grow taller? Start kicking that system back into drive. Want to lose weight? Start absorbing energy less efficiently or burning more calories fruitlessly. Have a random pain? Start to monitor that area and sensing for any particular anomalies.

If the control can go all the way down to the microscopic level then you’d be a walking advancement factory for every medical field. The primary issue would be trying to make practical recreations of the medicines and procedures you’d help create, and even then you could try bioengineering cells to recreate your medicines and procedures. You’d also likely be able to effectively never age by correcting the errors in your cell reproduction. With enough time and effort you could probably spawn a clone of yourself to go out and continue to help others.

If you allow the caveat that this also works on anyone/anything that you can touch, then the limit for what you can cure or at least aid with is bound only by what you can touch, analyze, and solve in time.