You can dispense algos to your TestNet account by visiting Algorand TestNet Dispenser.
Click the Google sign-in link at the top of the Dispenser page and sign-in with your Google account. Complete the reCAPTCHA. Then copy and paste the address you would like to send money to into the empty text box. Click "Dispense". A
200 status code and a transaction ID means success. Run
goal account balance -a <algorand-address> to view the new balance.