In my studies for this upcoming exam, I ran across someone offering a REASONABLE training course for 24 bucks.  I'd say its worth the 24 bucks because he's clear, informative and covers some details not included in some of the FAA samples provided already.  Not to say you still need to read the Pilot Handbook / pt 107 in its ridiculous 600+ pages...but check this site out below.

Udemy

In my studies for this upcoming exam, I ran across someone offering a REASONABLE training course for 24 bucks.  I'd say its worth the 24 bucks because he's clear, informative and covers some details not included in some of the FAA samples provided already.  Not to say you still need to read the Pilot Handbook / pt 107 in its ridiculous 600+ pages...but check this site out below.

Udemy