Not a tutorial series, but an ongoing series made by, of course, Arumba himself.
Note that the modpacks you can download are for multiplayer servers he maintains for his community, which are in turn "inspired" by his series - there is a slight difference between what he plays with and what's in the modpacks. The important parts (bobs, angels) are in the series, though.
Other than that, I can recommend a mod called
"What is it used for?", which adds a UI element that you can use to look up any kind of item that exists in your game, and then shows you by what recipies it is produced or consumed. It has helped me out a great deal, both in finding a use for byproducts, and to work out the chain of how to get what I want (turns out, bobs mods add cobalt steel plates whose only reason to exist is a high-tier mining tool and a suit of non-powered armor, or electrum plates that need to be researched extra, then made from other plates, only to be used for literally no other recipe than one single, specific tier of solar panels.)
Finally, there is an imgur link somewhere on reddit, I think, provided by the modmaker of angels mods, that shows a rundown of how, generally, ore sorting in angels refining works, and then there is another diagram on the internet (can't remember where, exactly) that shows how products/recipes in angels petrochem interact.
Generally speaking, you obtain smeltable ores mainly by sorting raw ore, which in turn needs to be processed before the sorting - higher grades of processing "expand" the yield of the sorting. 3-crushed-to-2-plates smelting recipes exist as a way to get you started. Then there is petrochem, which broke down the vanilla style crude oil patches down to two seperate kind of patches, yielding "multi-phased oil" and "natural gas", respectively, that need to be refined before the refining before the cracking before the....
With that general idea, and the "What is it used for?" mod, you'll be taming this beast for sure.
