Alar sill defect / nostril asymmetry, What would be the best treatment option? (Photo)

I underwent a botched unilateral alarplasty and lip lift which should not have been done. Thankfully, I had a rhinoplasty which helped with the appearance, but there is still an alar sill defect and nostrils are still a bit asymmetric. I’ve had fillers which helped, but results do not last long. I know cartilage is an option too. I’m curious what the best option would be? Are long term fillers an option? Thank you.