I would ask around and go wherever Beni (
Bei Facebook anmelden ) works. He is a VERY good guide/spotter. I met him in January 2019 while diving with Blue Rose divers but he was freelance then diving now and then. I did with him only 4 dives out of my 6 diving days. By far the best guide/spotter I ever had. His only downside was that his English were limited, hence topside communications were very basic.
Blue Rose was an ok operator. Not high end but had clean basic rooms (with AC), shared bathrooms, breakfast and lunch included for divers, (dinner in nearby restaurants only). The basic problem was that everybody (including most of the customers!) there was smoking (a lot) all the time. Even during breakfast and lunch (on a shared table!) which was not good as I don't smoke. Also some local people including dive guides etc were having fun almost every night drinking (and of course smoking) but causing no other problems.
I haven't been to the other operators there to be able to compare. I think one of them nearby was very similar to Blue Rose and there used to be another one further away that was higher end/more expensive. Post Covid I have no idea what is going on, other than I see from Blue Rose's facebook page that they are still open.