Hello

I've been searching for a long time and haven't found much. At Digitec, these seem to be the most that come into question. But the stand mount is a bit bigger than the surround speakers.

Samson MS200 (1 pair, stand, height adjustable)

I found the following on a google search as well. They cost a little more, but would fit very well.

CANTON LS 3 Black/Silver (just type in Google)

Kind regards

GoldenSkull