You may want to venture into Bloated Mans Grotto I got a lovely Akaviri Katana by the name of Bolar's Oathblade, I got this at about level 6-8 and im now level 26 and have not come close to replacing it.
The Grotto can be found on the mountain south of Whiterun, on the north side of the far west wide of the mountain.
Its full of Spriggans and bears with a few wolves.
Plus the place looks sooooo pretty
Hey, I've been through the whole place searching, but I can't find that sword

Where abouts is it inside the grotto? I think it may have something to do with a quest I done there.