Think Byteball is the only one worth a shit going on right now
And it is just about done.
Forgot to add BTX Bitcore:
https://bitcointalksearch.org/topic/annmain-bitcore-btx-datacarriersize-up-to-220-bytes-1883902
Yes, the current airdrop is over, but there will be more airdrops, it's a monthly process, except it appears that this month they will not do an airdrop (for November) so they are skipping this and the next airdrop will be on October, so you got until October to sort your bitcoins up and link all of your addresses to Byteball addresses for some free money.
I like the idea, avoids ICOs, but creates dumps on each airdrops, that's the problem of this method. It's also not automated. I don't like the feel of some guy changing the rules. I prefer the "rule set from the start" like on bitcoin. I mean a predictable and hardcoded method to issue the coins. The problem with this of course, PoW etc. Everything has pros and cons, that I know off.
Except Byteball but now you will be very Mado to hold in BTC. 10 BTC will give you 1 Gbyte just 400$