Meng To of Design+Code has a free course on Rive and SwiftUI! With over 3 hours of video and written articles, he shows how to bring an iOS app to life with Rive assets. He covers how to use the State Machine to build the graphics in the Rive Editor. He then shows how to run them in an app using Rive's open-source SwiftUI runtime.
Head over to designcode.io to get started with the course!