I came to the hard truth that there is not a simple answer for these productions and that you must lock yourself in a studio and figure **** out yourself.
I think you have answered your own question.
Youtube is your friend. There're videos on anything and everything on there. I certainly learned a lot there.
As for the track you posted, it's not that complex. A beat, a bassine and someone rapping, the "clever" bit is that it sounds like someone is messing around with a vocal processor while they are rapping.
If you want to emulate the people you listed (it's a good list), learn how to play. It's a slow process but ultimately rewarding. You can read up and experiment with all the techniques as you get better.