Sort:  

coinmarketcap.com is one of the most popular.
There is also coincap.io and cryptocompare.com which has more 'reports' on them.

Coin Marketplace

STEEM 0.21
TRX 0.25
JST 0.038
BTC 95554.61
ETH 3368.38
USDT 1.00
SBD 3.14