There are lots of posts you can search for that.
Way to many people making them now but i know the galco kingtuk is popular,obviously crossbreed,white hat,I just ordered a hidden hybrid for my xds. Said 2-4weeks but shipped in one day.
Give these a look. http://n82tactical.com/n82store/?page_id=3396 My son has one for his G19 and it is very versatile and rugged. Been looking to get one for my Shield but my FOXX holster is serving me very well. Good luck finding the right one for you.
I have carried my Shield in a Crossbreed Minituck for a year now, don't see it changing anytime soon, works wonderful. Conceals fine and is comfortable under everything including a t-shirt or even a tucked in button up shirt.
PM amhenry on INGO (Henry Holsters). Makes fantastic holsters in the Bloomington area. Great customer service and top notch products. Can make you a custom holster how you want it for no more than you pay for mass produced stuff.