Raven Vanguard 2. Love it. Would strongly consider a Phlstr Skeleton if buying today.
Appendix carry is efficient, easy to access seated or standing with little movement and certainly little in the way of an offensive posture. Holsters are tuckable. Easy to insure your weapon is concealed and not printing. Positive weapon retention. Very unnatural place for someone to look if your weapon does happen to print. Works with jeans, dress pants, shorts, t shirts or button downs, tucked or untucked. Does require a belt or place to secure a thong (i.e. zach "holster") Takes a little getting used to in order to find the "crease" the muzzle needs to be placed to maintain comfort. If you're fat, forget it. Replacing the weapon in the 'holster' is not something I do with the holster on my body. I remove the RVG2 and place it on the trigger guard with my finger off the trigger and muzzle in a safe direction.
Highly effective method and works well.