Personal email hosting discussion after Google Suite announced doing away with free accounts in 2022, can be found on Reddit.

One cheap alternative is MX Mojo

If we are to pay for email hosting, I think PurelyMail is good choice, at $10 per year.

Posteo is EUR1.00 per month for 2GB mailbox / no custom domain support

nexus bytes https://nexusbytes.com/email-hosting#Features for as low as $3 per year