Any useful information and comments are welcome!
I just ran a quick search and from the result I obtain, "Binance is the most popular Bitcoin exchange in Colombia with 170,000,000 users".
Binance is one of the big tire one exchange and it is very know in most countries, I even believe that it's also one of the popularly used exchange in my country.
Another exchange you can try is Kraken.
Well said, I will also advice for Binance first since its the one topping others on the list of the best and most recognized centralized exchanges, secondly, you may also considers Bybit, its also one of the reputable and global exchange you can consider among so many others i may not want to start their mentions, but never forget the risk in using these exchanges as they are centralized and you're not having the keys to this exchange wallets provided to you because they are custodial exchanges wallets.