replacement video card

Hi, I have Debian 12 "Bookworm" currently, and my video card is an 
Nvidia GTX 970.  While I'm happy with its speed, I'm not happy with the 
proprietary nature of its driver, nor its brokenness (1).  So, I seek a 
replacement card whose driver is in the mainline kernel (2).  I've heard 
AMD and Intel GPUs are generally not bad.  Do you have any further 
recommendations or anti-recommendation?  Thanks.

1: Its fans don't work, so I wrote a script to modulate the case fans 
and CPU throttle based on its temperature.

2: If you wish to recommend a particular card, keep in mind that cheap 
is imperative (like <$150 cheap), used is OK, and I have three monitors.