I have narrow buccal corridors and would like to widen my smile. What is the best option with a budget? (photos)

I would like to expand the right side of my arch - it's very narrow and has dark spaces in the corner when I smile, which has bothered me for years. I have been doing a lot of research. With a limited budget, what is the best option? I've had an Invisalign consultation but was told it would take 1.5 years to complete which is too long for me. Would veneers be a good option? I am also looking into DNA appliance but not many dentist service that in my area.