Key features:
- Get notifications when you enter a website if European alternatives are available
- Enter your country for country specific alternatives
- Whitelist websites that you don't want to see notifications for
- A sleek UI made for ease of use, and easy redirect to European alternatives.
Github*: https://github.com/K-Robin/GoEuropean
*European Alternative for Github: https://codeberg.org/
To add to that, they are very open about inquiries from legal authorities, see their yearly Transparency Reports:
...BUT E-Mail is an insecure form of communication by default, so you should definitely look into PGP encryption, see Privacy Guides - Email Security.