Baby tooth removal and shifting teeth over - Are Fastbraces the only option? (photos)

I have a baby tooth at the front of my teeth, the root is showing so it is making the tooth look discoloured. Had an Invisalign consultation and was told I would not be able to have Invisalign as the baby tooth needs to be extracted and my teeth need to be shifted over. I wanted Lingual braces but have been told this is not possible due to my bite. I don't want train track braces. Is the only option Fastbraces? Have read a few bad things about Fastbraces. What are my options?