Austin Batchelor is a working, professional artist who has create a number of online resources for the aspiring digital artist. What I appreciate about Austin’s contributions is the accessibility of his videos, whether you find his free content on YouTube, or paid courses on Udemy.com.
Austin leverages the excellent Procreate.app on iPad, further making his suggested workflows and processes very accessible to anyone on a budget. Aside: I would argue that the cost of an iPad Pro, Apple Pencil and Procreate.app are likely the least expensive, complete digital studio solution you can purchase assuming you are starting from nothing.
Finally, if you happen to purchase his courses on Udemy, he also provides an invite-only Facebook group where you can share your progress and work with others. If you are not already, both receiving and providing critical feedback is an integral part of growing as an artist.