Check out Sapien signature campaign. They have already raised around 2/3 of hard cap, so it should be a good choice. Plus I like GoNetwork project and they are also have a bounty campaign according to dozens of their signatures around this forum.
I completely agree. They are not only excellent signature campaign, but the whole bounty campaign. Yes, and the project itself is very interesting, although in the ICO itself I did not venture to invest in the current situation on the market.