Welche Rakete,satellit soll ich als nechstes bauen?
Translation: Which rocket, satellite should I build next?
This doesn't belong here, and as Horus said, this is an English speaking Forum. For posts like this, I would you use your profile. For which rocket/satellite you should build next, well, that's up to you. Try building a unique rocket of your own rather than the hundreds of Falcon 9s and Saturn Vs.
Edit: Translation is from Google Translate, so may not be as accurate.