Braces would be the best option as per your case.That would be permanent and less invasive.plus it will correct malalignment if present with any other tooth too.it will take a year and so for treatment to finish.cost varies but starting from 20 k Second option is crowning your tooth but that require unnecessary trimming of your natural tooth.cost varies again depending upon your choice of crown.time required is a week .

Braces would be a better option You can ask for Invisalign ( clear braces) and the treatment time is also less as compared to the traditional ones

At your age braces treatment is a good option. But it takes at least a year . Quicker options are cosmetic crowns or veneers . Cost depends upon the Clinic and doctor’s expertise