I can also vouch for lmstudio. If you can get Hermes running on Linux I would suggest trying that as well. It connects to lm studio and you use Hermes to communicate with the model. Iook into it as there's a lot to it, I've really been enjoying using it so far it even learns how I like to create tasks and I've stopped having to ask it to delegate certain tasks, it just knows to do it and to break down the tasks so my fairly context starved local model can handle it.

As for a model, the Qwen 3.6 family of models do really well. I'd suggest the Qwen 3.6 35B a3b probably Q4 depending on your hardware. It's large, but because it's a mixture of experts model only 3b of experts are kept on vram at any one time so it stays fast. Qwen 3.6 27b is the smarter "dense" model, but trying to stay with Q4 for quality it becomes too large for 16GB vram and for me runs at like 2 tokens per second lol