What watt and what brand should I get and also what monitor should I get that one looks good but idk
I would've recommended something else, bu since this is so cheap, definitely get this EVGA B2 750W.
The AOC i2267Fw monitor is a personal favorite of mine being $10 +/- $110. It'd be good for this kind of build.
Also, I'd get a 4GB R9 380 or R9 380X instead.
Link me that gpu u would get 380 and 380x
And I really don't think I need 750w I think 500w is enough
That's nice and all but it's cheaper than many others and is really good for the price. Whether you need it or not you aren't paying a premium for it.