Have you considered a single 21:9 monitor? I believe LG has software allowing you to split desktops so that it acts as if you have multiple workspaces.
$699 isn't too bad for a 3440x1440 monitor. Anither thing. Try not to buy brand new monitors. You can find great used ones that are in fantastic condition or have been restored. This one comes with a 90 day warranty.
I personally prefer IPS panels, since they have better colours, but those usually have a slower response time, around 5-6ms. Could be noticeable in gaming - at least that what some people say. Don't think it should be an issue
I'm also going to be doing YouTube videos as well as streaming (gaming) so I think 2 16:9 ones would be better. And about buying used, I'll look into that. Thanks!
would you be ok with korean monitors? I just got a qnix 2710 recently and it's pretty good. they're also pretty cheap. If you get the non-multi ones, you can overclock them. Logan made a few videos on korean monitors.