when putting a LER scope on a Mosin, the scope mount is equally important as the scope itself, if not more important. Ultimately, any decent LER rifle scope rated for that level of recoil should be fine. Bushnell is one brand that I prefer, affordable and holds zero.
Leopold, as mentioned above and Unertl are also very good glass, which are sadly beyond my budget.
Avoid stuff like NCStar and Barska. And insist on a quality scope mount, not the cheapo aluminum rail that replaces the rear sight leaf. I had one on my M-44, and no matter what I did or how much loktite I applied, it would shake loose after a few rounds, and eventually stripped the threads. Get something in steel, or at least steel threaded inserts for the mounting hardware.
FWIW, I gave up on trying to scope my Mosin, and shoot it with open sights.