There are many resources depending on what exactly your projects are. Justin Jackson's book "Marketing for Developers" was quite helpful to me. Here's my brief review - https://learnetto.com/blog/learning-marketing-from-justin-ja...

I run an online education site where we're going to launch some courses on marketing. I could give you free access if you email me at hrishi@learnetto.com and tell me more about what you're trying to do.