[scoot]

I use 33mail.com (33m.co) for this which gives you a personal subdomain for free, or a private domain on the paid plan. I'm on the (super cheap) paid plan due to mail volume, but haven't found the need for using a personal domain.

I find it zero effort having a unique email address per site, and when combined with unique (algorithmic) password gives effectively a unique identity per site (cookie sharing aside, but there are solutions for that.)

As a result, I have been able to call out a couple of sites for data breaches, and continue to see npm spam in particular. Worst offender so far is Pipedream, an absolute embarrassment for their CEO who appears to have initiated the data scrape. I won't be surprised to see them sued out of existence, which is a shame, as I like the service in general.