OTC hearing aids have improved greatly. The fact that they are now allowed to be called hearing aids is one indication of that and some are FDA approved. Many are made by reputable companies. Did your audiologist tell you what kind of aids would be most beneficial to you? If they didn't it might be worth going back to the place you were tested, or having another test, perhaps at Costco, and getting more advice from them about exactly what you should be looking for. Do you need over the ear or the small in the ear ones (they don't work for everyone). Try and gather as much information as you can so you are well prepared when you make your decision. Depending on your hearing, it's possible that OTC won't work for you (I can't use them for a variety of reasons) or will only give limited help. Ask the audiologist about the type of dome they recommended for best results. Costco is usually very helpful even if you end up not buying from them, or the audiologist you saw before should be willing to help. Hearing aids are crazy expensive, and even good quality OTC ones are not cheap. There are much cheaper ones, but again, they may not be the best. For a good pair you may still be paying close to $1000 but that will be for a pair, not more than twice that for one. Another thing to think about is rechargeable or battery. If you are older and have any issues with manipulating fiddly things, the battery operated ones can be just that, a fiddle. Rechargeable is very easy and will give you a full day's hearing. If you buy at the very low end of OTC you have little control on changing anything, whereas the more expensive will have an app that will allow you to modify levels etc through the app which can be very useful. There is a good site for comparing aids at hearing tracker which compares best hearing aids for 2023 (as a new member, apparently I can't post the link but it should be easy to find) and companies such as Bose and Sennheiser also make OTC hearing aids, some FDA approved.
Also just type OTC hearing aids into an Amazon search and see what comes up and really read the reviews. If you have Prime most have free returns. Also some will come with a trial period within which you can return them no problem.

Sorry for jumping in late. I incurred my singled sided hearing loss back in May ‘19 thru a work related injury; therefore fortunately covered by a very reliable Workman’s Compensation grp.
I’m currently 72, and prior to my injury I had near 100% hearing in both ears. Following injury my R-ears word recognition dropped to 76%.
As others have cautioned it’s imperative your Audiologist needs to determine what type of hearing loss you have (sensorial or conductive)? I was originally fitted with a single sided hearing device by Phonak which thankfully my Workman’s Comp paid for; but unfortunately since ‘19 my word recognition declined to 42% this past June because it was then determined I had a sensorial hearing loss (inner/outer cochlear hairs were damaged) which is why my hearing aid wasn’t providing the clarity I required. On Aug 3 I had a procedure where a Cochlear -OSIA2 was implanted (bone conduction implant) that has produced remarkable results since my fitting and programming last month. Again thankfully my Workman’s Comp grp. paid for. My point here is to emphasize you determine what type of hearing loss you have before purchasing even an OTC hearing aid that may not even address your hearing needs so you don’t waste your money. I say this because I stopped wearing my Phonak, as good as it was, but glad I didn’t have to pay for it as it was quite expensive. Had I had a conductive hearing loss it likely would have been worth every penny. Wishing you all the best!