Tooth #30 needs to be extracted. Like you said the options are either an Implant or a Bridge. Implant, in my opinion is a better option long-term. That's what I would do if it were my teeth. Hope that helps!
It looks like you have a crown on one of your front tooth and rest natural teeth. it is very difficult to match one crown to the rest of your teeth. if you are looking for more symmetric smile - You can get 4 or 6 porcelain veneers. Properly designed porcelain veneers can correct the shape, size, position and color of the teeth and give you a brighter more symmetric smile. Hope that helps.!
Invisalign works extremely well as long as 1. Patients wear the tray for up to 22hours/day. Which means the tray needs to be in your mouth if you are not eating.2. Good planning by the treating dentist There is a simulation done by Invisalign that can show you what your results would look like once you finish your Invisalign. You should review that to make sure the result matches what you would want to accomplish. Invisalign is very predictable and successful. A full thorough exam and x-rays are necessary before proceeding with Invisalign. Hope this helps.
Invisalign can definitely help move your teeth outward more and reduce the darkness in the buccal corridor space. That will make your smile look wider. Hope that helps!