I recently asked a somewhat similar question in a thread you probably already saw, maybe even posted in, but just in case you didn’t I got some great advice there and ended up getting a nice deal on a computer capable of handling my work and gaming:
https://boards.straightdope.com/t/help-me-spec-out-a-new-work-at-home-pc/
The tl;dr of the thread was that this computer was recommended to me. It does have a graphics card, but on sale at $1200 it’s a great deal and I’ve been very happy with it so far. It’s not available for shipping online, so if you have a Micro Center within driving distance it might be worth your while (sale goes until Nov. 1):