What an odd coincidence? I had a similar idea yesterday. Except, I think your solution should be more general; A site that lets anyone pay to talk to an expert on any topic. The user should post their question and the experts compete to be selected; it is important that only the experts that care about the question are selected. Kind of like uber for conversations. I don't think it should be a TaskRabbit clone. The experts only provide information; they don't do the work.

For example, I want to talk to someone about selecting an alibaba manufacturer for a specific niche. I also want to talk to someone about how to get products into retails stores. And so on.

There are many related services. For example, you can have translators connect people. I think there is also a need for translators for people with poorly formed ideas; the translators would communicate with the experts who don't want to deal with those people directly.