For a list of force powers that are already canon in the Star Wars universe, here's a link. Wookieepedia has a butt-load of information on the galaxy far far away.
http://starwars.wikia.com/wiki/Category:Force_powers
As for force powers I'd create. I've created some in the few Star Wars fanfiction rp sites I go to that allow force power creation.
Telekinetic Blaster Combat: Basically similar to telekinetic lightsaber combat, but applied to blasters and other types of guns. Think the dragoon system Gundam Providence, Gundam Legend, and Strike Freedom Gundam had in the Gundam Seed series.
Ashla Alchemy: Similar to Sith Alchemy from the Star Wars universe, but it's the light side that's used in the alchemy, not the dark side. That and it has it's boundaries, such as it can't be used on living or dead organisms except for plants and that it's best when creating medicine. Named after the ancient term the Jedi used to call what is now known as the force.
Force Deafening: Basically cause all within a certain field of influence to not be able to hear anything as long as the force power is active.
Sound Torture: Cause all within it's field of influence to hear everything within a certain radius at a loud volume, thus torturing their ears and possibly harming them.
And there's more but I'll just leave at that.