If you want one holster (or multiple holsters) that can attach to multiple platforms, Safariland QLS is the best system out there.
Carry Rig: Safariland 578 GLS Pro-Fit Holster Reviewed - Guns and Ammo
Best Concealed Carry Holsters of 2023 [Hands-On Tested] - Pew Pew Tactical
Quick Locking System (QLS) - Inside Safariland
Safariland QLS Holster System
Right Handed Nidhogg Series Lightbearing Outside the Waistband
How do you feel about paddle holsters? : r/securityguards
Weekend Knowledge Dump- April 7, 2023
Safariland QLS Quick Locking System Kit QUICK-KIT1-2 Bundle with 2 Mid-Ride Belt Loop 6070UBL-2-2 : Sports & Outdoors
How to Mount Your Safariland Holster Using UBLs (Universal Belt Loop Adapters) – CopQuest Inc. Blog
Walther PDP Holster: The Perfect Holster For Your Walther PDP
Weekend Knowledge Dump- April 7, 2023
Most reliable holster Mount? : r/tacticalgear
Right Handed Nidhogg Series Lightbearing Outside the Waistband
Holster Central Concealed Carry Blog - We Have The Holsters!– Tagged custom kydex holsters
Weekend Knowledge Dump- April 7, 2023