Thailand Photo-centered Diving Recommendation?

I'll be sailing with friends from Phuket to Langkawi late February-early March, 2027. We'll largely be sailing on the east side of Phuket, so while the diving may be ok, we won't be hitting Richelieu Rock, etc. on the west side. I'd like to come in a week or so early (pretty flexible) to dive and photograph the Andaman Sea. I've read several reports about the diving being good to great, but the crowds and divers make it a not-so-pleasant experience. I'll likely be a single traveler. I'm not crazy about the idea of a liveaboard, but would be willing to go that route if the boat, crew, guides, and diving are great (and avoid crowds). Also looking for photo guides, either private or small group.

What reputable companies or resorts should I reach out to?

Thanks in advance,
Evan