Google. Use Searxng for search, Firefox/Librewolf for browser, Newpipe for Youtube, Graphene instead of default Android, literally anything for calendar and notes, and FDroid for apps. Don't let Google's services destroy your privacy.
I also have been trying to convince people to try Kagi. It is so much better than google results, has no ads, and is very pro-privacy.
Only downside is that you have to pay for it, but honestly it’s worth it to me for how much better it is, and no ads or psychology against me is a big bonus
Yup. To add more: Brave for searching because it has it's own crawler. OrganicMaps and OSM for maps. Joplin for notes. AsteroidOS for WearOS. NextCloud for Drive (including some auto-syncing/back-up stuff like mobile contacts). Proton or Tutanota for mail.