Hi,
Like woolacombewanderer and angzecheng8 suggested, it is old school and not suggested anymore.
I would suggest you this:
You know your niche better. Write an article a day. Or even 2-3 article a week. Forget the quantity, focus on your readers/quality. That's what google loves. Its slow, but its stable and good.
You don't want to be ranked on page 1 in 1 month (if at all it happens with article spin posting) and be out of market the next month with google updates.
So take it with quality, slow, steady. If you really have a budget, you can hire writers, or much better, content marketing professionals.
It is not mandatory to just post articles. Make a video or audio recording if its easier. You can always get someone transcribe it at lower price for you.
Your readers do not need content in text format alone. Now world is multimedia. Focus on quality, deliver content in different media types and it will work.