Welcome to the forums, newcomer!
Power Supply: Corsair RM 750x.
How old is the unit and what did it power throughout it's tenure in your build?
I'm looking for the best Video Card compatible with what I have.
You might want to stylize this thread with a follow up post with info asked of in this thread;
Look at the Tom's Hardware Graphics Buying Guides and review the most recent "Best Graphics Cards for the Money" Article (published monthly) to get you started. Tom's Hardware has a staggering amount of information about all of the latest and greatest graphics cards to keep you up to date...
forums.tomshardware.com
and the community can move forward with suggestions.