I've created several video courses on the topic of microservices. Delivered via Safari's Online Bookshelf, these courses are each broken down into easy to watch bitesize chunks.
I also have a large back catalogue of conference talks, most of which have recordings available.
A 3 hour course looking at how to secure your microservice architecture
A 3 hour course introducing Serverless, and looking at how it relates to Microservice architectures