It’s 5am on a Saturday. What millions of actions do you suggest, O just-as-wordy-yet-holier-than-thou HN commentor?
Get organized. Join a mass movement, a local group or a union. There are many people doing things. Stop complaining then excusing yourself for not being one of them.
No one can do everything but everyone can do something.
If you are in law enforcement, do not follow clearly unlawful orders. The president is not your boss. This is a functioning democracy.
If you are a librarian, do not hide otherwise lawful books that the current administration dislikes.
If you are in logistics, do not collect obviously unconstitutional taxes. Make sure to challenge them in courts first.
If you are in a university, stick to what is true and scientifically sound. Do not hide inconvenient truths.
If you are a baker, do not refuse to make a rainbow colored cake just because you are worried what the people wearing metaphorically brown shirts might say.
The list goes on and on and on. This has been well documented throughout history. Fascism needs a seed to thrive, and that seed is people complying in advance. Not with actual laws, but with the idea what direction the law will take, just because it's easier for them. People not helping other people because immigration is not in vogue right now and who knows what the neighbors might say.
https://commonslibrary.org/198-methods-of-nonviolent-action/ here's some to get you started
Assuming this is in good faith: think about it yourself, are you seriously waiting for people to tell you what to do? Use your critical thinking skills, read history about similar situations. If you can't, find someone OFFLINE that will. And don't go telling your plans on the web.