I've been a big fan of Fastmail for email and calendars. I've also thought about joining May First Co-op (https://mayfirst.coop/ https://mayfirst.coop/) as they

I've been a big fan of Fastmail for email and calendars. I've also thought about joining May First Co-op (https://mayfirst.coop/ https://mayfirst.coop/) as they've been around for a bit and offer a suite of services which includes email, chat, nextcloud for documents and files, etc. I've also had good results with DDG for most things search. I know people say the results are worse, and on some occasions they are, but mostly it's perfectly serviceable in my experience. For video conferencing I've been using a mix of Jitsi Meet and meet.coop (a big blue button instance that I have access to through my membership in social.coop, which is good for social media). For chat (including phone calls and SMS through https://jmp.chat https://jmp.chat) I use https://conversations.im https://conversations.im, the client costs money but the service just went free unless you want to use a custom domain. My phone is running Lineage OS using F-Droid for an app store. I don't like F-Droid very much for reasons that don't matter here (that might have been fixed since the last time I looked into it for all I know), but it is a perfectly good alternative so I recommend it in the absence of anything better. For maps I've been using Organic (https://organicmaps.app/ https://organicmaps.app/). It uses Open Street map data so at first a lot of places I wanted to navigate to weren't there, but I added all the places I go regularly to the map and now it works pretty well.