1984.hosting is great, I’ve been using their service for a couple of years now. They’re based in Iceland (really strong privacy laws) and have options for crypto payment if you don’t want to reveal yourself through your payment method. As with all registrars, they’ll need an email address (or alias) to reach you at in case there’s a domain dispute, and while they also ask for address and phone number, they’ve never had me actually verify anything beyond the email. If you give a fake address and phone number, then you’ll just need to understand that if someone challenges your domain, it will be very difficult for you to prove ownership with fake details (not as if that’s likely to happen unless you’re allowing the site to be crawled by a search engine though). I only have a domain through them, not a hosted webserver, but they seem to have good options for hosting. I know that they handle Let’s Encrypt certs automatically for hosted sites, and they run off green energy (geothermal) if that matters to you.