Safety razor with any blade like Wilkinson, Feather, Gillette, etc. I personally have not found a huge difference between them, but I also shave immediately after getting out of the shower without any shaving cream which some people might see as psychotic.
I went to a safety razor years ago after getting into it on a shaving subreddit and have never looked back. I bought a variety pack for like $20 CAD of razor blades 5+ years ago and I'm STILL going through them.
It takes a lot of strength to change what was probably a core part of your identity - I respect your change.