For the MEAN Stack,
1. Have a look at mean.js over on Github https://github.com/meanjs/mean
2. Support women who code by checking out the free videos over on www.bossable.com and follow the 30 day Mean Stack Challenge
3. Find something that you'd like to improve or add to the project and start contributing! P.S writing training guides always gets left till later on, so maybe start with that :)