This might be useful: https://european-alternatives.eu/

Nextcloud is German, I think.

https://european-alternatives.eu/

The first I can think of (because I'm using them):

• Filen (E2E) encrypted cloud from Germany. Replaced my other cloud services for a few months now.
• Codeberg, for git stuff. I'm no dev (I just use it for my own little scripts) so I could not tell how feature-rich it is or if it lacks anything it is but so far it seems to be working great ;)
• Mullvad VPN, Swedish if I'm not mistaken.
• Should I also mention LibreOffice? It's not a European product, but its 'foundation' is German-based if I recall correctly.
• Hetzner a German company for cloud, webhosting and some other stuff I can't even begin to understand ;)

That said, I mostly focus on software being Free/Libre. Maybe in the coming years, with the rise shit nationalistic politics that we're witnessing, I will have to focus on EU-made products and services only—that would be sad.

If you don't want or can't self-host, I can recommend Posteo for E-Mail, Calendar, Contacts and Filen.io for Cloud-Storage.

LibreOffice, Odoo, Mastodon, Nextcloud and more. Lots of Linux distros and desktops are based in Europe.

There is a lot of FOSS done in Europe and EU is very proactive with it. CERN is really helping open hardware and KiCAD.

My friend uses zoner.cz for editing photos. The license is like 50€ and at least for us (we use it for editing photos for children group) they don't care about password sharing.

OpenBSD Amsterdam

https://openbsd.amsterdam/

Proton, Tutanota, Disroot & Codeberg

Controversial take, Spotify

Kolabnow for mail! Based in Switzerland, focused on privacy.

Proton is probably my most used euroware.

platform.io is Ukrainian so is Grammarly and GitLab and Reface and Restream