Choosing an email address/provider for academic work as you change positons
After some of my personal e-mail hopping (also as corresponding emails on papers), I'd recommend getting a domain name and linking it to one of your email accounts. That is, only if you do not get to retain your academic email indefinitely if you have one (the uni I used to be at has the regulation to delete the e-mail and do no forwarding...)

By having your own domain, you can move services but keep the actual email consistent over time. I.e., you can use name@domain.org and where that points to just changes.

Any kind of service (and domain) that you cannot move around nor have any assurances for longevity on, are to be avoided IMO. I made that mistake with both my university and a corporate account so I learned the hard way...