>>930115As a generous estimate you can say there might be 130 Million German-speakers in the world. For comparison, the 2019 estimate of the number of Spanish-speakers in the world was 580 million.
That other anon is right, HoloES is more likely than HoloDU. Hell, HoloRU is more likely, since there's about 258 million of those.
I definitely understand wanting your language to get reps, but German is not a very common language. It's a borderline miracle that you have a speaker in Hololive to begin with.