Firefox Relay
IMO if you're really concerned about anonymity and securing your email from credential-stuffing, and willing to pay for such a service (I used to pay for 33mail), it's easier to just buy a domain and route * to your inbox.<p>It won't get banned by some services, you have complete control over the domain and account, you can send email from any address you wish, you can sign up for domain-wide haveibeenpwned alerts by verifying domain ownership via TXT records, and you don't have to worry about the service going out of business in 2 years.<p>After going through my password manager last year and changing as many logins and emails as I could, I've found several services that have sold my email address to third parties and one that was hacked.  It's a relief to know I don't have all my proverbial email eggs in one basket.