If you are looking for training courses, I recommend searching them on LinkedIn. Many universities offer free or symbolic cost training courses (one of the few benefits of the Covid), including marketing. I started a food delivery business right before the pandemic. Soon, I realised that it was the perfect timing, but I did not have the necessary knowledge to promote my product. That is when I got in touch with sproutboxmedia.com. The best thing about cooperating with them was learning about digital marketing from experts in the field. Soon we are planning to get my delivery company to an international level.