TACA does
not operate a TACA Salón VIP at Aeropuerto Internacional Juan Santamaria, San José, Costa Rica; you can see a list of TACA lounges
here.
COPA has a shared Presidents Club with CO at its hub at PTY.
Priority Pass seems to be the ONLY place / company that claims a lounge access at SJO - a search with Google et al in English and Spanish reveals
nada. You could always ask there "Hay salón VIP?" (eye sol-LOAN veh ee peh? is fairly close for Inglitch speakers...)