Remote customer-support openings I found after 13 years as a teaching assistant

I came across a list of work-from-home openings with paid training. There are 13 people counting on me, so I am trying to be careful. Most want a quiet workspace and reliable internet. Are there warning signs I should look for?

Thanks for writing this out. I went through something close to it 6 months ago, and it settled down once I kept a simple log of every call and form.