open llm leaderboard [0] is probably good to compare open weights model on many different benchmarks - wish they put also some closed source one just to see what's relative ranking of best open weights to closed source one. They haven't updated yet for gemma 3 though
Beware that they use very narrow metrics. Which is also why you only see fine-tunes over there gaming narrow aspects. If your edge case fits into one of those - great. If not and you just want a good general purpose model you'll have to look elsewhere.
[0] https://huggingface.co/spaces/open-llm-leaderboard/open_llm_...