Odoo is the best alternative out there. It is developed by a Belgian company, but it is entirely Open Source and allows you to self-host it in order to completely own your data and avoid having to depend on a provider, even if European.
Occhioverde
joined 2 years ago
It's on giveaway on Steam too: https://store.steampowered.com/app/286690/Metro_2033_Redux/