Tutoring
Free tutoring is offered by the following non-profit organizations:

Learn To Be offers free, 1-on-1 online tutoring covering math, reading, writing and more.

Schoolhouse.world is from the founder of Khan Academy offering free SAT bootcamps, Live 1:1 math homework help, and small group sessions. Get help with math, test prep, and more.

Upchieve offers free online tutoring and college counseling. 1-on-1 support from live coaches, 24/7, in a variety of subjects.