Sort:  

Through an exchange. Go too coinmarketcap and find the exchange the trades the most volume and purchase there. I'm not familiar with the wallets for daxx but that's where I'd start.

Coin Marketplace

STEEM 0.18
TRX 0.25
JST 0.035
BTC 97993.02
ETH 2698.33
SBD 3.33