Which type of harmonica should I use?
All our instructional videos are for the 10 hole diatonic harmonica in the key of C.
The harmonicas we recommend for Beginners, Intermediates, and Professional can be found here:
Which Harmonica to Buy? The Best & Worst Harmonicas
https://www.harmonica.com/which-harmonica-to-buy/
NOTE: You can move to chromatic harmonicas or any other harmonica later on if that's what you prefer.