If your just talking Ku ....Atlantic sats like Telstar 12 and Hispasat , for sure .
Most of the Satellite Footprints for North America don't cover much south of Mexico and if they're borderline you need an enormous dish.
What I would do is go to Lyngsat and start clicking on the coverage maps and see how far south they go , compile a list and we can discuss it here.
For those figuring out the geography Panama is that little narrow territory of land just north of Colombia , and for those not familiar with Colombia it is next to Venezuela on the Northern end of South America.
Galaxy 18 Ku is just borderline in Panama and requires a big dish
Satmex 5 and 6 were also good satellites for Central America.
From what I could see on the coverage maps C-band is the way to go , plenty C-band on atlantic sats.