A while back I went through the motions of moving away from Google. FWIW, a very nice email service (that I believe I found from a article posted on HN actually) is Purely Mail (https://purelymail.com/). Certainly worth putting in the consideration pile.

As pointed out in the comments here: Get yourself a domain and "own your email". If Purely Mail dies, I can move my provider and keep my email.