Switching software [0] which has a repository on Codeberg [1] and an account on the fediverse [2]. It is not focused directly on EU alternatives, but:

> switching.software is a grassroots website, that is trying to let people know about ethical and easy-to-use alternatives to well-known websites, apps and other software. It is specifically aimed at a non-technical audience.

[0] https://switching.software/

[1] https://codeberg.org/swiso/website

[2] https://fedifreu.de/@switchingsoftware

Thanks! I've known about them and have used them to filter and find software, but as you mentioned, it doesn't focus on EU alternatives, so it's a bit more work when I'm focused on that, but they've definitely been useful in the past to me!