I have interest in Donauschwaben, because my father's father and grandfather were prominent community members in Harta (Hungary), which was (re-)settled by a mix of Lutherans and Calvinists in the 1720s, at the behest of Count Paul Raday, who was the local landowner at the time. The village's Wikipedia page claims that the settlers mostly came from Württemberg, Hessen, Pfalz and Speyer.
However, I frankly have no interest in or energy for the Germany project right now. My grandfather's family came to Harta from a town that's now in Burgenland, not Germany.
Primarily what I could contribute is translations: Hungarian is my first language, and I can figure out written German as long as it's written in actual Latin letters. (Fraktur is mostly OK, but no, I do not count Kurrentschrift and its ilk as Latin letters.) I can also usually figure out the level of Latin found in church registers.