What is the most suitable procedure to correct flaring of the nose when smiling? (photos)

I have a pretty flat nose bridge and tip but I'm okay with that. What I'm looking to fix is how much my nose flares when I smile, without it looking unnatural. I've seen pictures of alar reductions where the sides of the nose slant downwards after and I don't want that. I've also seen people with relatively flat noses getting implants and the results tend to be a little off. Seen Botox as an option but don't know if it can be an effective treatment for me.