I think you already added every affective ways of marketing or bounty.
You may add Reddit bounty as now many bounty campaigns are adding this method and it also make your project to grow.
Thank you.
The truth is we're going to lead the Reddit by ourselves.
But we are also considering this channel for promotion.
Although, in my opinion this form of information exchange is quite specific.
So far, only initially and fundamentally, the tactics I have now for Reddit: we seach in reddit for "ICO", do a filter by the date of the post and look at all the messages for 24 hours. We choose those where the people ask questions, to which we can answer and try to natively stick our answer, for example:
"What has been the most successful? ICO so far? I just started getting into / learning about cryptocurrencies and ICOs seem pretty interesting. Did any popular cryptocurrencies like ether, litecoin, ripple, etc. start with an ICO?"
And my answer is: "etherium started with ICO., The biggest was Bancor, I think. $ 160m. And the most successful will be ours: _____.io
"