What is the best solution to fix the indentation on my nose?

You have a challenging problem that absolutely needs cartilage from septum or rib as well as careful release of scar tissue, and probably a small secondary procedure for the scar.  I would carefully select a surgeon with experience in revision rhinoplasty.

VERY difficult problem......especially if you want to do something "small". Without being able to assess the actual tissue characteristics one cannot know what might be best. My guess is this area is actually damaged scarred skin and for a complete change you could even require full thickness replacement of the subunit of skin there. Perhaps a well performed full-thickness skin graft of the entire subunit or even a subunit reconstruction with nasolabial flap tissue.There is a premier nasal reconstruction surgeon in Chicago you could see for a super experienced evaluation.

You have a difficult problem with no great solution.  The indented skin is damaged skin and filled may stress the skin and cause it to necrose. Excising the skin will usually leave a poor scar on the nasal tip.

 First of all, this is a very difficult problem to fix, so choose your revision rhinoplasty specialist based on extensive experience with this specific issue. It's important to wait at least one year before undergoing any revision rhinoplasty procedure to allow full healing to occur. Cartilage grafting techniques utilizing the patient's nasal or ear cartilage or will be required to build up this area. The scar may also require further work after the structure has been built up underneath the depressed area.

I would suggest visiting with some revision rhinoplasty surgeons. These cases are very tough since there is a combination of lost support and excessive scar tissue. I would find someone in your area to see in person and have an honest discussion about expectations. Best of luck