Ollama + Gemma/Deepseek is a great start. I have only ran AI on my AMD 6600XT and that wasn’t great and everything that I know is that AMD is fine for gaming AI tasks these days and not really LLM or Gen AI tasks.

A RTX 3060 12gb is the easiest and best self hosted option in my opinion. New for >$300 and used even less. However, I was running with a Geforce 1660 ti for a while and thats >$100