I've never heard of tokenmarketcap, but the first 2 sites you mentioned are very important for getting attention & also for the purpose of checking the market value of your tokens. However, if your token is a degen token or your project doesn't have much money, I think it would be better to advertise your project on sniper & checking sites for degen tokens like Poocoin.
Don't judge immediately, you don't even know the name of the website, so of course you don't know whether the token has a use-case or not, in this forum we discuss and help other people who want feedback from us.