It’s pretty self-evident that Code Mentor depends on having mentors and consequently, they have a dedicated place where you can apply.
Designlab
Designlab is an online bootcamp focused on UI/UX but also depend on mentors for their curriculum. They also have a dedicated page to apply to become a mentor.
Out of Office Hours aims to create a dialog between newcomers and people working in the tech industry.
#YesWeCode
#YesWeCode is looking for dedicated in-person or virtual tutors with experience in front-end and back-end coding languages to support their scholars in reaching their full potential.