GPU Recommendation

I am looking to build a PC where I can run some LLMs and also pytorch and maybe some video encoding and I was wondering what is the best price wise GPU with at least 16GB of VRAM that I can buy right now.

For the record I really hate NVIDIA and I would prefer not to give them my money, but if it is the only viable option I would probably wait till they release the 4070 Ti Super, but what about the AMD (7800 XT) GPUs or the Arc A770? Are they going to work? In the past I had an AMD GPU and making ROCm work with it was a pain in the ***.