What is the best way to send money to someone who lives overseas? How are the fees?
A lot would depend where you're sending from, where you're sending to, and whether you're sending your currency or theirs.
If you're sending your own currency overseas the cheapest way is to put banknotes in a card and mail it. Staple the notes to the card, so nobody can slit the end of the envelope and slide the notes out.
If you're sending their currency, or sending enough that physical cash is inadvisable, it would still depend on how much money you're sending and whether it's a one-off or a regular payment. If it's really regular it may be worth considering getting an account in their currency. If it's a small amount and an infrequent occurrence the chances are you might as well just use a PayPal gift or similar.
What currency are you looking to send, and to where?