I carried a 4" 586, then a 6" 686 in a 4" open bottom, body shielded FIST, leather/Kydex hybrid (if you get one, get it canted) IWB holster. I later used a Mika IWB holster. Both are good. I prefer FIST. What is your barrel length?
Have you tried to carry it without a holster ? I carry my 686 4" IWB without a holster . I personally know people don't recommend this but I find it comfortable and have never had a problem .