You can check on Nexus Mods for some general bug fixes, but I 'd say just open up the game and give it a shot. There's just so many mods for Skyrim-- imagine a feature you'd like in the game, and there's probably a mod for it. To keep the vanilla experience, maybe stick to UI mods and QOL stuff. If graphics are important to you, there's a bunch of visual mods that are subtle but bring the game up to speed. Enjoy! I've put so many hours into that game over the years.