Tri-state? Colorado, New Mexico, Utah? Vermont, New Hampshire Maine?
Without your location this can be a bit of a goose chase. You can however search for professionals up at the top of the page.
This is a great article. It will help you with a garage remodel.
MD, DE, VA? If you can get a local recommendation from someone who has had something done, or knows of someone, try that 1st. Try to avoid these referral sites like Angie's List (sorry Liliana). But if you must, do a search and review what people have been going through. Not to mention, what us contractors have been going through with these services!
Check out houzz.com for idea pics; it's my go-to website for all kinds of ideas. Do a search for family room, game room, etc.
Get a permit