One key point is that you do not want a single all-encompassing alternative, at least one that is a remote corporate-run service, as this simply replicates the risk elsewhere.
The principle options are:
- Integrated replacement services. Don't do this.
- Multiple independent free services. At least you've diversified risk. Mind that these may (and likely will) consolidate with time. Skype, WebMeeting, Instagram, YouTube, GitHub, and Blogger were once freestanding companies. They no longer are.
- Self-hosted solutions. NextCloud, FreedomBox, etc., or DIY service bundles on your home, office, and/or a hosted service can avoid the problem entirely at least for highly stateful services (email, contacts, files, documents)
The principle options are:
- Integrated replacement services. Don't do this.
- Multiple independent free services. At least you've diversified risk. Mind that these may (and likely will) consolidate with time. Skype, WebMeeting, Instagram, YouTube, GitHub, and Blogger were once freestanding companies. They no longer are.
- Self-hosted solutions. NextCloud, FreedomBox, etc., or DIY service bundles on your home, office, and/or a hosted service can avoid the problem entirely at least for highly stateful services (email, contacts, files, documents)
https://duckduckgo.com/?q=google+alternatives
https://en.wikipedia.org/wiki/Nextcloud
https://nomoregoogle.com
https://alternativeto.net