Bristoe had a thread not too long ago about some good ones he got.
They synced (that means being controlled by) a smart phone.
No doc and reasonably priced as I recall.
Mine are made by Bose. But they stopped producing them for some reason. Spares are still available for them, however.
They work very well. But I would guess that there's others that do also. I think that the technology in most hearing aids today is very similar.
I only use mine when There's a reason to have my hearing turned up. It's always a revelation when I put them in and start hearing sounds that I had forgotten existed.
There's a lot of mail order hearing aids out there these days. Some of them get very good reviews.