You can buy bitcoin on different platforms depending on where you live.
For Haiti, you can buy bitcoins at https://echange.eritajpam.net/ with your local currency. You can also buy at https://www.coinmama.com, https://cex.io or https://www.binance.com with a debit card like the BUH MasterCard.
For the Dominican Republic, the Sambil mall has a bitcoin ATM to facilitate buying and selling.
For Chile, see https://www.buda.com/ or https://app.airtm.com/sign-up out.
For Brazil, we suggest https://foxbit.com.br/ or https://bitcambio.com.br/#/
For Canada, we recommend using https://shakepay.com/
For the United States, use CashApp to buy bitcoins, https://www.coinbase.com, https://www.binance.us, or even https://www.kraken.com/
For other countries, https://www.coinmama.com/ might be a good option, but our favorite is https://www.binance.com
Once you are done buying bitcoin in a cryptocurrency exchange, we strongly suggest that you move it to your private wallet, something like Exodus, AtomicWallet, or TrustWallet.