I have a Mac Studio M1 Ultra with 128GB of RAM, an M5 Pro MBP with 64GB of RAM, and until recently an M1 Pro MBP with 32GB of RAM. I also have two Mac Minis with 16GB of RAM, but they're mainly used for embedding models because they're so small.
I'm doing a bunch of batch work for an experiment with them right now, but my daily driver is a Gemini Pro subscription.