Recommendations for GPU with good Linux support, 8GB or more VRAM, and ~150W TDP or less?

I could in theory upgrade the power supply to go beyond the 150W target, but then I'd also need a better chassis because it is already quite warm with my current 130W card.

Hoping to stick with AMD, but if my wishes to play around with local LLMs and image upscaling makes Nvidia a more practical choice, I can live with that compromise.

Working with a budget of 200 US, I'm fine going with a used GPU.