Fastmail has a "masked email" feature, which will forward emails sent to (potentially temporary) email addresses to your regular email account.
So will SpamGourmet[2].
Of course the problem with all these services is that you're giving yet another third party access to your communication and giving up your privacy to them.
They are all, as far as I know, completely unaccountable regarding what they do with the information they get from your private communication.
No matter what they say in their privacy policies, press releases, or PR, there's no way (as far as I know) to reliably verify any of their claims.
That said, I'd still rather deal with a company which at least claims to respect privacy rather than one that (like Facebook or Google) either spit on it or make money off tracking me and datamining everything they can about me.
[1] - https://www.fastmail.help/hc/en-us/articles/4406536368911
[2] - https://www.spamgourmet.com/