I have short roots, an overbite, and crowded teeth. I cannot get braces or Invisalign. What other options do I have? (photos)

It is impossible to answer definitvely- without seeing the xrays that the orthodontist was using to base their decision. Have you had more than 1 consult? That would be my first route- get 2 more opinions. The photos you submitted- Veneers would be a solution- however that 1 canine tooth that is badly sticking out would be difficult to get a good result with veneer. There are 2 other possibilities to correct that. But a more detaile set of photos, and xrays would be necessary to be sure. Have faith that you are NOT doomed to the fate of continuing to be unhappy with your smile.

you have two options,the best one is to do braces and to bring that bite to a correct position,the situation is that at the end you will have a good oclusion,but you will still have the same teeth,with the same shape,size and color,and it will take up to 1 year aprox.now if you do not want to have braces or having braces is not part of your plans,you can have a different alternative solution,which is Smilemakeover,where you will be having a full mouth change in just a couple of days and change your life!,and you will certainly will have also good results with several techniques involved,and you will be changing shape,size and color.