Greetings!
I've been looking for an exchange site like Coinmama. I am located in the caribbean and my country its not supported by Coinbase. I tried Kraken but didnt work for me.
Any help?
Depends on what payment method you're willing to do.
If you're using credit card then Localbitcoins isn't going to be the first option for you.
Honestly the rates are just too shitty to be desirable on there for credit card payments, sometimes you'll be paying a 20-30% markup on top of coinmama rates, which are already marked up heavily.
Since you're located in the Caribbean, try localbitcoins and instead of using credit card, use international SWIFT transfer. It's going to take a while more but the rates you get will be far more desirable than credit card rates.