Now that you have the topic you, we are going to move forward to the next question.
Who is your ideal audience? Who you want to help?
If you are teaching from your own experience, think back into the learning process you went through and you'll find the prototype of the person who struggles with the problem you already solved in your teaching topic of choice.
Strive to see this person in your mind's eye so you can relate to their struggles and needs.
The success in the online marketplace is built on transparent relationships.
You will be connecting as a human being to other human beings only regarding your topic you'll be the wise guide who has the solution to the problem the students are faced with.
The joy of living is in giving - giving of your wisdom is especially rewarding.