I made one video in later 2018 where I talked about SOAP vs REST. I did some preparation before making that video like I made a nice slide where I explained what is SOAP, what is REST and I tried to go through the differences. I made that video mainly to learn myself. Little did I know that the video will become really popular. Right now it is the most watched video on my channel.
You can watch that video here.
I am glad I made that video. Not only I think it was useful but it also gave me an idea and motivation to create more videos which I have been doing since then :)