If you are sending money to someone overseas western union or other money transfer services could offer that to you but with few fees which sometimes become quite expensive.
I prefer sending money via PayPal which is fast/safe and easy.
I compared the fees for sending money from western union and PayPal and found it is quite cheaper PayPal is 20% cheaper to send funds.
To transfer funds via PayPal it is best to check the online calculator to see the fees and how much one needs to meet inorder to transfer the desired amount.
Here is the free online calculator https://www.shopify.com/tools/paypal-fee-calculator