Your hearing loss is going to make it hard to follow speech, in both ears. Your left is worse in the high frequencies, going down to the severe loss level, but the right is not much better. See how you loss fits on a speech banana. You are losing all speech sounds.
As for what type of hearing aid you should get, that is best left to a professional. The most popular type of hearing aid has the body behind the ear, and the receiver in the ear, or usually called a RIC style. I put your loss in a Rexton software to see what it would show. Rexton is essentially the same as Signia, and were formerly Siemens. In any case the software indicates a medium power receiver would just provide enough power, but the next most powerful which they designate as a P receiver would give you more room for further loss. That low frequency loss usually means you need a closed or tightly vented fitting. The software suggested a 1.6 mm vent in a custom mold. Here is what the predicted gain would look like with a NAL-NL2 prescription target.
As far as buying a hearing aid from that company link you provided in Estonia, they do seem to have all the various types including the RIC model. I would expect they offer them with at least three ranges of receiver power levels. The issue I see with using them is that unless you travel there how are you going to get it fitted and programmed? If you go with custom molds, who is going to do the molds? You probably could get away with closed click domes, but the fitting problem remains.