marinecoin.
You can get a shitload of marine coins for free, due to the current airdrop. In this instance, shitload = 450,000 coins!
Marinecoin has been around for years, unlike most of the current coins that are being airdropped, which have no history. In fact, at a certain point in time, marinecoin was bitcoin's main rival. That's some good history there.
Marinecoin's current market cap is less than 1mUSD. SO there is so much room to grow. For it to increase 100x (that's 10,000%, something that bitcoin is not going to be able to do in the near future), it only has to grow to a marketcap of 100mUSD. That is not unheard of in the cryptocoin world. In fact more than 130 coins have marketcaps of more than 100mUSD
I could go on and on, but the last thing i'll say is, go to marineco.in and find out how you can qualify for 450k coins.
Marine coin is at least worth taking a look at considering is free. Getting something for free can be 1000x since it was free

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Also just be careful about the suggested coins, always do your own research, people will mostly shill the coins that they hold.