For email, I recommend purchasing your own domain name and finding a provider that allows the use own your own domain (like Proton or Tutanota). A catch-all function is also good for making unique addresses per service, so you’re mostly protected from data leaks and spam. Like lemmy@yourdomain.tld or clothingstore1@yourdomain.tld

Will make switching email providers much easier when you don’t have to update your address to tens or hundreds of services you’ve registered on.