Hey guys, so far this seems to be one of the best bets, and it's even fully plug and play with full touch support across pretty much any OS except Retropie:

https://www.amazon.com/OSOYOO-Raspberry-Capacitive-Touchscreen-Beginners/dp/B07Z685PM6/ref=mp_s_a_1_4?dchild=1&keywords=7+inch+DSI+Touch+Screen+LCD&qid=1591149971&refresh=1&sr=8-4

However, the one caveat is that the resolution is a bit lackluster at 800x480, quite similar to the official display (but at a lower price).