Crypterium (CRPT) is a popular token available on major exchanges and through Crypterium app. It is the principal token of the Crypterium platform. You can buy these tokens with fiat (hard) currency, BTC, ETH and a number of other methods.
In 2019 summer, CRPT swapped to the Binance Chain.
A social network digital coin, the ReddCoin (RDD) had forked from Litecoin as far back as in 2014. It is currently listed by a few exchanges with the possibility to buy the coin for fiat currencies. The ReddCoin blockchain “uses personalized IDs for social media tipping”.
Santiment Network Token (SAN) is an ERC-20 utility token of the Santimet market research network. The token is listed on a few exchanges with the possibility to trade it against USD.