DASH and IOTA rank top 10, while TRX ranks top 11 by matket capitalization, but it seems that they are not as famous as the other altcoins. Too weird...
Because a lot of people are getting concentrated to the largest smartconctract platform. DASH offers only masternode and you need to pay a lot of money to become a masternode in the dash network. IOTA and TRX give you nothing if you hold both of coins. That's why a lot of people are not familiar with all of them. They lack of utilities.