I just picked up a 9mm shield yesterday and I'm looking for opinions on the best iwb holster for this gun. I have an aliengear holster for my p320 and my lcp 380 and I like them pretty well but they are a little bulky in my opinion and not the most comfortable. I'm looking for something a little bit nicer for my shield as it will be my primary carry gun. I'm left handed so I carry around 8 o'clockish if I'm thinking correctly. I typically wear jeans and a light weight t shirt so I would like a holster that works well with light clothing. Any suggestions?

Alien Gear Cloak Tuck 3.0. I've had mine over a year and it's comfortable.

The new one also looks good but hasn't been released yet. I think you can convert it it from IWB to OWB.

I'm the kinda guy that likes Comp-Tac, Bravo Concealment, etc.

But for the Shield, I actually like my cheap holster over my C-Tac holster.

Concealment Express on Amazon for $35. Here

Blackpoint Tactical Mini wing for my shield. Effortless to throw on and hides in a T shirt...

I use this one from Amazon and have been happy with it.

Im not a fan of my Cloak Tuck 3.0.. just too bulky makes the shield uncomfortable.  YMMV

Im actually borrowing one of those for a Glock 19 and im really enjoying it.  I might pick one up for myself untill I can settle on a nicer one.

Galco Stow N Go for a G26 or a Bladetech Klipt is what I use. AIWB.

$20 and Galco or Bladetech hard to go wrong there.

This has become my daily IWB holster as it is secure, comfortable, adjustable belt clip/retention and has multiple color choices.  Highly recommended.  Every body type is different, but, I'm 225 and 6' tall and comfortably carry between 3 and 4 o'clock.

Cooks Holsters