Anyway, I don't believe that coin market cap always list the coins based on fundamental value. CMC and other listing sites or even most of the exchanges now a days list a coin based on hype, pump-and-dump.
Are they really listing based on hype? I thought they are listing the coin's rankings based on its market cap and trading volume(take note that not all coins listed on rankings are manipulated by hype, one example of which is dogecoin which is currently on top 30).
Are there any others that are backed by more than empty promises?
I believe there are none. Most of the altcoins nowadays might have a working product but only a few people use it or none at all.