From best to worst

• Still preferably none, your brain is a muscle
• A local model with beefy hardware, first and foremost… Or a less powerful model that’s still local, like Ensu
• A proxied model from a company with a good track record, like DuckDuckGo or Proton
• Out of the ones you listed, DeepSeek might be the least bad. As long as you don’t send personal information to it, stick to the site and not a permission-hungry app, remain behind a VPN, and aren’t a recent expatiate from China asking prickly questions, it’s probably fine.
• Google hates you. Gemma is Google. They are a part of the American surveillance apparatus incarnate.