If you use bows in Skyrim Special Edition you might want to check out this outstanding mod from brownie1256 and OutLaw666.
Scoped Bows is an impressive weapons mod that adds scoped variants of all the bows found in the vanilla version of the game. All of the scopes match the bow so nothing looks out of place.
Each scoped bow includes two sights. One of the sights is used when aiming while your character is standing. The other scope is used when your character is sneaking.
You can find these scoped bows lurking around Skyrim. NPCs will be carrying them around. And you might even find them in some shops. If you'd rather craft them yourself, you can do that too. You just need the appropriate smithing perks.
For more take a look at the video above.