Where Do I Find A Fair Orthodontist In San Diego?

I’ve gone through the whole process, braces on bottom and invisalign on top, and was down to wearing my retainers nightly when I lost the top one a few months ago. I would like to find an orthodontist willing to give me a few months of invisalign retainers to put my top teeth back in place without charging an arm and a leg for a whole new treatment plan. Please let me know of anyone! fYI I have new insurance so I have a new $1000 lifetime max contribution available to me.