I took the GMAT three times and my best was 650.

I do not want to take it again.

Which schools can I get into? U.S. schools only.

Tough question to answer without more information. What are your other factors (work experience, undergraduate performance?) What are your goals?

Start by looking at the GMAT tiers post from Duncan:

https://find-mba.com/board/gmat/gmat-tiers-strong-schools-for-your-gmat-23247

Generically, top MBA programs in the US that have GMAT scores around 650 as an average in no particular order:
George Washington
Rutgers
Purdue
UC Irvine
North Carolina State
Texas A&M
Georgia Terry
Temple Fox

Hey man thanks. I have 4 years of work experience at a marketing firm. My undergraduate performance was fine, my overall GPA was 3.5 at a state school. In terms of goals, I aim to stay in marketing, moving into a bigger market so to speak (I'm in a smallish town.) I was actually looking at Rutgers because it's in the NYC area and seems to be good for marketing. What do you think?

Looks like Rutgers would be a good choice for marketing:

https://find-mba.com/lists/top-business-school-by-speciality/top-business-schools-for-marketing

If you could get up to 700 on the GMAT you'd have some other interesting options, such as Wisconsin.

I've taken the GMAT 3 times now and I doubt I can my score up to 700. Rutgers is becoming more and more a favorite.

Not a bad school. Maybe you could also apply to a reach school - like Wisconsin, maybe - as well as a 'safety' school to hedge your bets a bit.