Coins that you get for something like RaiBlocks?

[MateuszHDHR]

Hey guys, not so long ago RaiBlocks were disturbing their coins by solving captcha, every1 would be rich cuz when I calculate that right now it would be probably like 4$ per captcha when I was doing it... so that ended but I would love to do such thing for another coin so I'm asking you if u can tell me if there is any coin that is gained by some work like captcha or something, just like Steem and this RaiBlocks when u get them in other way then mine/buy. I was googling it but it lead me nowhere

[Lexi Jane]

I also looking for this one.  I believe there is a coin that can work for aside from the coin you'd said.