All proprietary programs or services that may or may not track you. There should only be free software on that website. You can't tell whether a proprietary service tracks you because you can't see the source code.
Crowd-sourcing taints the pool significantly here. You end up with things like DISCORD appearing, and Dropbox listed above Nextcloud.
How is "privacy-friendly", and "tracking" being defined here?
If you just want to say, "Here are some alternatives to Google's service." that's fine, but "privacy centric without tracking" is pushing it in my opinion.
Some are legit, though.
Did anyone else read that link as "Nom or google"? I think I'll nom, please. Maybe on some cake. Nom nom nom.
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