You can buy Doge by using Binance US. They offer Doge as well as many other crypto coins. Let me know if you need any help or have any questions. https://accounts.binance.us/en/register?ref=52316808
You can buy doge by downloading the Voyager app. Use code 397B74 for $25 in free Bitcoin. Feel free to message me for any questions. https://voyager.onelink.me/WNly/referral?af_sub5=397B74