The Nextcloud website has a comparison between file sharing services (https://nextcloud.com/compare/), however many open source ones are missing see for example:
https://en.wikipedia.org/wiki/Comparison_of_file_synchronization_software
it may be good to add some of these.
There also seem to be errors with the following pages not appearing in Firefox:
- https://nextcloud.com/healthcare
- https://nextcloud.com/education
- https://nextcloud.com/agencies
- https://nextcloud.com/legal
- https://nextcloud.com/engineering
Let me know if better to file as a github issue at https://github.com/nextcloud/