VanishingPoint has a ton of Trek stuff. Can't call it Trek stuff, of course, but it is. (I've bought all their Voyager stuff.)

I don't actually watch Discovery (didn't like the first episode enough to buy a subscription), so I'm not sure exactly what it looks like. But the "Galactic Oligarch" uniform in the VP store looks like a DIS uniform, that would need re-texturing. They have a bunch of different bridge sets, sickbay sets, engineering rooms, etc. I only recognize the TOS and VOY ones.

They also have Trek freebies at ShareCG and at their web site. I know they have a free model of the Discovery ship.