here are some places that already accept BTC in Medallin. Its worth going to them, showing them the below links to their pages and asking them if they want to open a Hive account. If they open a Hive account their clients will get discounts for spending in HBD or in BTC lightning

https://spendhbd.social.gifts/checklist/owo-business-directory?currObj=4ux6es-columbia#4ux6es-columbia