I have been working on https://1launch.eu for the past two months. Very MVP stage. I don't plan to be in the same niche as european-alternatives, but it is very much inspired by this. It is largely meant to be a ProductHunt / AngelList for Europe with a couple of key features especially for the European market (like instant translation into all 24 languages of the EU to launch in the whole European market in one go). If you want to launch on the platform or want to be involved in a different way, send me an email on hackernews@1launch.eu