Check upwork or fiver. There are people offering a wide variety of expertise in a format similar to that outlined in the article. I know someone who hired someo

Check upwork or fiver. There are people offering a wide variety of expertise in a format similar to that outlined in the article. I know someone who hired someone to talk about designing building ventilation systems for two hours — it was relevant to his work, so he basically found a way to hire a consultant for a fraction of the normal price.