I am classed as 'profound' hearing loss in right ear and slight hearing loss in left ear. All due to nerve damage suffered whilst 11yrs to 12 yrs old. Tried out NHS hearing aids (old type (analoque)) and couldn't get on with them.
Abandoned them and went for an 'in the canal' aid from Specsavers for the left ear only, the one they offered for the right ear was big and bulky (behind the ear)and being a bit vain (!) I didn't have it although cost had a bearing as well.
Just recently I decided to get a replacement(s) and decided to try NHS again. My GP just laughed when I asked for a NHS hearing assessment appointment and said the waiting list was about 2yrs.
So I went along to both Boots and Specsavers and went through the tests with them.
Was shown various recommendations by both companies. In the end I moved away from 'in the canal' to behind the ear type. These do not have removable batteries, being rechargeable and have the benefit of 'bluetooth' to connect to my smartphone, pc and laptop.
They do not look too obtrusive and a lot of people do not realise I am wearing them. I am also a very good lipreader which helps as well.
Be guided by who ever is assessing your hearing but just take some of their claims with a 'pinch of salt'.
https://www.specsavers.co.uk/hearing/hearing-aids/brands/advance
These are mine because my hearing loss is very high and in the ear type just not suitable unless I was paying an absolute fortune.
You probably wouldn't need ones like mine. All I'm saying is be guided by the advice given and not what looks the best. I've been wearing them now for about 3 months and now kick myself constantly for not getting them sooner.
Don't forget you can still remove them when your OHs giving you grief!