These anti-Google discussions come and go on the front page of Hacker News, but I'd be curious to know how many people actually degoogle their lives drastically after reading such discussions and articles. I believe it's more of a case of "Oh my god, Google is so disgusting! Shame on Google!", and then people open up a new tab in Chrome to search on Google about their next restaurant destination as if nothing happene…
I started a De-googling process. I documented how I replaced Search, GMail, Fit, Photos and Drive: https://duncan.codes/posts/2020-10-20-migrating-away-google-... This week I made progress with my phone, now running https://calyxos.org/ and using Google services only via https://microg.org/ for Maps and Cloud messaging. In my case, privacy is a reason, but I also consider a system inherently insecure if your account…
For e-mail provider you can also consider Posteo.de, and for e-mail application on Android and AOSP (forks) you can use P=P (a material design K-9 fork with PGP support).
I'm using Soverin, btw. Happy with them.
As for AOSP forks there's a lot of them, not all equally ready. There's CopperheadOS, there's /e/.
There's also PostmarketOS which is like a mobile Linux foundation for other OSes much like Mer was. There's SFOS (SailfishOS) which has Android emulation (if licensed), and all kind of mobile versions of Linux distributions such as Manjaro, Arch, Debian, Ubuntu, PureOS, etc. If you're into that, Pinephone might be interesting. They got 13 OSes ready to be loaded.