My loss isn’t quite as bad but it does border severe. I also have low word recognition in the worst ear. As a result my audiologist (a very good one) suggested I might be best off with a single aid. We tried two. I found that speech seemed fuller with two. I’d suggest you try two and decide on your own what the cost:benefit is for you.
If you look at your test, you will see test results for bone conduction hearing. If that is quite a bit less, a good ENT might suggest a simple surgery that could restore a lot of your hearing. It replace the stapes bone to restore hearing to the levels close to the bone conduction scores shown. (Bone conduction scores are normally shown using [ and <.)