Great series of videos on getting started with making a front end web app using AWS lambda, dynamo DB for “Serverless” hosting: https://www.youtube.com/watch?v=fSUEk6iMW88&list=PLzvRQMJ9HDiSQMe68cti8cupI0mzLk1Gc
I have to say that Simply Explained seems like a really good channel/resource in general too!