I'm currently on Hover, which is mostly fine. Except it doesn't support a certain kind of DNS record (can't remember which; ALIAS maybe?) which is necessary to get requests without the www. prefix to resolve correctly to my Heroku apps
Google Domains is out because I don't use Google products/have a Google account
Security is a high priority because my emails go through one of my custom domains
Those are about all of my requirements; it's also just hard to know which registrars are trustworthy
Would be very grateful for recommendations
You can use Cloudflare now too as a registrar but I decided to keep my registrar and DNS separate