Do you want to have only the U-shaped osteotomy (as described in the text) or in conjunction with double jaw surgery (so as a modified Lefort 1)? If the latter is the case, you could try to contact the first author of this paper ( https://www.ncbi.nlm.nih.gov/pubmed/29927828 ) who seems to practice in Mexico city (I do not know if this is easier for you than Spain, I did not find any other surgeons).
If you only want the U-shaped osteotomy without a Lefort 1 you can of course ask surgeons in your area if they perform it (which will be the only way, as nothing can be found on the internet).
However I would suggest you go with Alfaro as he published this technique and is generally regarded as a skissed surgeon.
Edit: I read in your other thread that you fear being treated bad if something goes wrong as a foreigner. I cannot comment on this doctor in Mexico city but I had a consult with Alfaro in Barcelona.
The staff and Alfaro himself were really pleasant as you described, too, and they seemed to have quite a few international patients.
Noone can guarantee you anything for any doctor but I would feel secure having it done there.
Thanks, haha I have already read this paper fortunately. I am looking to just get the U Shaped osteotomy, my jaws are not recessed by any means.
Probably would look better if it was moved forward a bit but not worth enduring that process.
Can you tell me more about your consult? Did you end up going for the procedure with him?