Can't say enough good things about Costco.
I have been wearing hearing aids for 60 yrs. Time has REALLY changed them.
I have the K9's bought a few years ago.
First up, audio folks at Costco are top notch. They do not work on commission.
Two - price - excellent for sure.
Third - best competitor to Costco is TruHearing (
Hearing Aid Benefit Solutions | TruHearing).
Finally - Costco audio folks cannot treat medical issues that require an ENT, they will tell you this right upfront.
Suggest try Costco, good warranty and trial period. I use custom molds - extra (about $90) but very much improved quality. Next try TruHearing.
Only negative is appointments can be hard to get.
Good luck!