If you're a beginner rider and your height is 5'6", there are a few Royal Enfield models that could be suitable for you. Here are a couple of options to consider:
Royal Enfield Classic 350: The Classic 350 is one of Royal Enfield's most popular models. It has a timeless design and offers a comfortable riding experience. The seat height is relatively low, which should be suitable for your height. It also has a smooth power delivery and is generally easy to handle, making it a good choice for beginner riders.
Royal Enfield Meteor 350: The Meteor 350 is a more modern cruiser-style motorcycle from Royal Enfield. It has a relaxed riding position and is designed to provide a comfortable and easygoing riding experience. The seat height is also suitable for riders of your height. It features a refined engine, user-friendly controls, and modern features such as a digital instrument cluster.
It's important to note that choosing the right motorcycle also depends on your personal preferences, intended use, and the type of riding you plan to do. I would highly recommend visiting a Royal Enfield dealership or authorized dealer to sit on the bikes, get a feel for them, and possibly take a test ride. This will help you assess which model feels more comfortable and suits your needs and riding style.
Additionally, attending a motorcycle training course or obtaining proper riding instruction is highly recommended for beginners to ensure safe riding practices and gain confidence on the road.