The EU Parliament will publish all data on election night from across all EU countries on here:
https://www.europarl.europa.eu/portal/en
Projections and estimates by national parties will start to published soon (from 18:00 GMT+2). First overall projection (European overview) at 20:15 GMT+2. Actual results at 23:00 GMT+2.
Tbf I’m not from Germany, but Austria. Maybe the Germans do it differently