You'll get a ton of suggestions on this. The two I use and are very happy with are the 2A Slim Profile Pancake (Kydex) and the Kusiak Outsider OWB (Leather).
They cost a little more than some but are well made and do a great job. You might have to wait a little for the Kusiak as they are generally made to order. Great holster though.
Slim Profile Pancake – 2A Holster
The Outsider holster is for outside the waistband carry. Made in USA. – Kusiak Leather
They cost a little more than some but are well made and do a great job. You might have to wait a little for the Kusiak as they are generally made to order. Great holster though.
Slim Profile Pancake – 2A Holster
The Outsider holster is for outside the waistband carry. Made in USA. – Kusiak Leather