I've taken a similarly specced machine running Linux out camping and on boat trips "a number of times" (before you complain about me not enjoying nature I was living this way for a while to save money on rent.) here are the models I like:

Gemma3 Qwen 2.5 instruct Qwen 2.5 coder

You should take multiple distills/quants. It's good to have a high quality model sometimes but for most stuff you'll want something bellow 1GB for the fast response times. The quality is close to or better than the original chatGPT and they support extremely long contexts (if you have the memory.) It might be good to take a VLM as well (I've been happy with Qwen's VLM although it's slow.)