To attract more participants, you can start from some free webinars for certain times. Once you can get webinars well prepared, run webinars interactively and show the great value of your webinar, more and more participants will be willing to pay for your entire webinars and then it's a good chance to create paid webinars to monetise your expertise.
Create a presentation you can deliver which is related to that product. The presentation should be helpful and useful, and mostly pure content. If the webinar is going to be an hour long, then you should have at least 45-50 minutes of good, solid content in there before you ever even talk about the product. An exception would be if the entire point of the webinar is how to use that product.
After you create your own webinar, it's crucial to prepare your webinars in advance and whenever you are about to undertake the process, be prepared to do a lot of digging. On the Internet, you might have to create an actual live demonstration that shows what the participants would expect from their attempts and other useful links they might need to host their own projects. Preparing a webinar for the learners or peers is an involving process and you must be prepared to spend time in getting all the details correct and going all over it with a fine-tooth comb to avoid releasing a half-baked webinar to eager participants. Only when you prepare the valuable webinar content and hit the market accurately, can you make your own webinar profitable.
Having a great product and some charm isn’t enough. The reality is that your webinar audience is diverse in their budget, trust and communication style. You need to be skilled at appealing to a wide audience through a variety of sales strategies, while consistently spelling out the benefits of what you have to offer and how you can bring value to their lives.