You have 2 options to fix the symmetry of your front 2 teeth-
1) Veneers, which will involve shaving down the enamel on the front 2 teeth and then placing veneers to achieve symmetry and improved esthetics. Treatment time is 2 visits, approx 2 weeks from start to finish.
2) Invisalign, which is invisible braces that will realign your teeth in the correct position without the need shaving down any tooth structure. However keep in mind that invisalign can take approx 6-12 months and will require you to wear the retainers for 22 hours a day for the treatment duration and then at night time for life to maintain the alignment.
So, the right treatment for you will depend on these factors. Both the good treatment options and will give you the desired results.
Hope this helps.