Most of these have free parts and paid parts. These are courses I feel are in the price range of your average Tumblr user. There are much more costly schools out there, but unless they are in person, I don’t recommend paying a lot when there are schools that charge much less and offer a lot.
http://www.blue-moon-manor.com/ taught by Adrian Ellington. Has a free seven week mini course on meditation and going within to prepare for their traditions method of magic and spell craft, youtube videos and a paid e-book course that is about $20.
http://www.heritagewitchcraft.com/ taught by Grayson Magnus. Has a free to view part with lectures, classes and read along with paid student portion of the forum. Paid students get posting access, weekly classes, mentorship. Tuition is about $100 a year.
http://www.thorncoyle.com/morningstar-mystery-school/ taught by T Thorn Coyle. It has weekly assignments, mentorship, classes and a forum about $20 a month.
My new fairy witch school is starting later this month, its http://www.spiritscraft.com I am the teacher. It will have three lectures a month, mentorship and a forum for about $5 a month.
I think ideally all of us would like to learn traditional witchcraft in person. But usually that isn’t possible.