If you want to start with minimal $ investment, check out https://www.markmeldrum.com/ and his youtube channel. He provided detailed lectures for every reading in Level 1 FOR FREE! He also sells copies of the notes and provides questions in pdf format on his site for about $8/section.
I'm about 30 readings in and his stuff has been the main part of my studying.
I'm about 30 readings in and his stuff has been the main part of my studying.