Doesn't look like my preferred holster, alien gear, offers one to accommodate the light for either one of these.

Stealth Gear is a pass for me. I carry from 1:00 to 3:00. Not looking for an appendix carry holster. I also prefer a two clip holster style, like the AG or StealthGear Ventcore, versus one clip.

I use Neptune Concealment for my P30L with TLR7A. They appear to have what you are looking for in regards to the P2000/TLR7A. They also have it for the USPc, but the 45 ACP model only from the looks of it. Wait time is a bit long as they are small veteran owned shop. They however, have quite a nice selection of HK pistols with various light options and was one of the few people I found that made any light option for the P30L. Every where its always just the P30. I found these guys through a recommendation on Reddit and have been pleased. I run one of their AIWB holsters with an ALIAS mount and its been great.

https://neptuneconcealment.com

I don’t think you’re going to find anyone making a holster for the USPc with TLR-7A, since you’ll have to use an aftermarket rail adapter to mount it (unless there’s some new accessory made for the HK rail that I’m not aware of). It would require a custom holster maker to design one for that specific configuration. That’s why I gave up carrying the USPc. I love the pistol, but holster options were just about nonexistent.

The TLR-8 Gen 1 can be mounted to a HK USP 45c without an adapter by removing the key and clamping directly onto the rail.  This may also work for the TLR-7a.  Blackpoint Tactical makes an iwb holster for the USP TLR-8 combo.