Chris Richardson is a US software architect, Java Champion, and the author of Microservices Patterns (Manning) — one of the canonical reference works on the architectural patterns underneath service-oriented systems. He runs microservices.io and consults on the migration from monoliths to microservices at large enterprises.
His CourseFlix listing carries Microservices Patterns, Second Edition. Material is paid and aimed at software architects and senior engineers responsible for the architectural decisions on multi-service systems.