Fierce Defender on Amazon. I know I know but they actually make a quality IWB for appendix. Best part is if you hate it almost instant returns with Amazon. This is the full size just a quick browse to the compact.

https://www.amazon.com/Fierce-Defender-Holster-Winter-Warrior/dp/B075F9QSLS/ref=mp_s_a_1_8?dchild=1&keywords=canik+tp9sf+elite+holster&qid=1599056436&sr=8-8