My question is mainly how to do the marketing if you are launching a new crypto currency step by step ?
Signature campaigns are always good considering how much traffic this website gets and it's not very costly. You can always go the facebook/ google route but that will be much more expensive. The best thing to do is build a community driven project so that supporters will do the advertising for you because they hold the coin and are passionate about it.
I think signature campaigns take a lot of money. Youll actually need a large budget to conduct a signature campaign because youll have to pay a campaign manager and its participants. If you have bounty campaigns, on the otherhand, this would save you a lot and give you plenty of promotion and advertisement as well. The coverage is pretty wide since it covers Facebook, Twitter, Telegram and many other forms of social media. Social media gives plenty of coverage so its a good marketing strategy.