YouTube is a great way of promotion.
There are plenty of tutorials on how to open a youtube channel.
With some free software like https://youtubedownloader.com/en/ you can easily download plenty of videos regarding Forsage from other members.
In the video, description put your Forsage affiliate link.
DO NOT monetize videos that you take from others!
Is this a copyright complaint? Yes. But people that are in your upline will not be angry because you getting referrals with their videos. Anyway, if someone asks you to remove the video, you can do it easily in a few clicks.