T-rex arms does good work. https://www.trex-arms.com/product-category/holster-categories/iwb/

tulster

Vedder light tuck

I would be remiss if I didn't throw a shoutout to StealthGearUSA. I have been carrying my S&W Shield in one of their holsters for almost a decade now, with absolutely no reason to change. Incredibly comfortable, durable, concealable, and yes, tuckable.