Reddit's LocalLLama has a lot of these. 3090s are pretty popular for these purposes. But they're not trivial to build and run at home. Among other issues are th

Reddit's LocalLLama has a lot of these. 3090s are pretty popular for these purposes. But they're not trivial to build and run at home. Among other issues are that you're drawing >1kW for just the GPUs if you have four of them at 100% usage.