A Google inquiry yields 1.3 million hits in just under 1/2 second!
In the same spirit as the Rifle Scope Forum - "Tips for Asking Advice About Rifle Scopes" and as Jerry McGuire said, "help me, help you".
I suggest a similar forum Sticky regarding Holster Advice.
A few initial filters from the OP would seem to be useful for those willing to opine.
Firearm of interest: Sig P229c
Budget: < $30 $30-$100 > $100
Position of carry:
Right / Left Hip, Appendix, Drop leg, Shoulder, Pocket, Ankle, Lumbar
Concealment:
Open carry v. concealed carry v. inside / outside waistband
Attachment to Person:
Hip paddle, Safariland style QLS / ELS fork system, Belt loop, Clip-on
Carried otherwise:
Brief case, Backpack - inside / outside, Fanny Pack, Vehicle
Security:
Level 1-3, Open top, Speed holster, SERPA style, Thumb break
Adjustable:
Carry angle / height
Material:
Leather, Cordura nylon, Kydex like, Carbon fiber
Color choice:
Black, FDE, Cammo
Firearm accessories:
Rail light / laser, Red Dot Optic, tall suppressor sights, threaded barrel,
magazine / speedloader holder
Holster warranty:
Important or not ?