Sure, I highly recommend checking out Coursera's Graphic Design Specialization. It offers a comprehensive introduction to graphic design principles and tools, perfect for beginners.
Another great option is Skillshare's "Graphic Design Basics: Core Principles for Visual Design". It's interactive and allows you to work on real projects to build your skills.
I personally found Udemy's "Graphic Design Masterclass - Learn GREAT Design" to be incredibly helpful as a beginner. The instructor breaks down complex concepts in an easy-to-understand way.