Alex Okrushko is an Angular and NgRx specialist, a Google Developer Expert for Angular, and one of the core contributors to the NgRx state-management library. He runs NgRx Workshops and publishes paid course material on advanced Angular reactive patterns.
His CourseFlix listing carries two Alex Okrushko courses on Angular and NgRx. Material is paid and aimed at Angular developers working on enterprise-scale applications where state management and reactive patterns matter most.