The two that I like.

Howto: Steemit Bot Tutorial For Newbies #1 - Votebot
https://steemit.com/howto/@felixxx/howto-steemit-bot-tutorial-for-newbies-1-votebot

[Piston-API] Tutorial - Make a vote and post on your own app using Python
https://steemit.com/piston/@woung717/piston-api-tutorial-make-a-vote-and-post-using-python

Comment your links to other bot tutorials. I need them all.