You have already got some great pieces of advice to promote your project on different forums. However, one thing seems missing. What you gonna promote? A website link of your project? A long content explaining about your project? or a real engaging stuff like explainer video of your project which can attract more people.
Definitely, I would recommend to use explainer video. Recently, we created a video for gratz ico and it added a great value in promoting their project. Have a look at the video we created for Gratz.
https://vimeo.com/283325680You can have a glimpse of our complete portfolio here.
https://vimeo.com/showanimationsLet me know if you are interested, we can further discuss about the type of video that will be more feasible for your project promotion.