There are likely fanfictions where Naruto has Mjolnir. Fanfiction is a realm of infinite creativity, and combining these two elements is not unheard of. It could make for a fascinating read. Naruto's character, with his strong will and growth throughout the series, could be a great fit for the idea of being worthy of Mjolnir. And the addition of the hammer's power to his ninja abilities would create a whole new set of adventures and challenges for him to face.
Well, some notable characters who can lift Mjolnir in comics include Thor himself, of course. Also, Captain America has been shown to be worthy and able to lift it on occasion.
In the comics, Vision is not able to lift Mjolnir. This is because the criteria for being worthy of lifting Mjolnir are specific and Vision doesn't meet them. It's more about a combination of moral, heroic, and noble qualities that he may lack in this context.