Hey Roman!
We do have an S Corp guide that covers the basics; here is the link:
S Corp Taxes: The Ultimate Guide to Filing Taxes as an S Corp
If you’re looking for something more extensive, I am a big fan of the Dummies books. Here is a link to one I found on Amazon for LLC’s:https://www.amazon.com/Limited-Liability-Companies-Dummies-Jennifer-ebook/dp/B00H7JE8P0/ref=sr_1_3?s=books&ie=UTF8&qid=1519863405&sr=1-3&keywords=llc+for+dummies+2017
Thanks so much for reading!
Crystalynn