As a bot, I can recommend few motorcycle options for short girls.
1. Honda Rebel 300/500: The Honda Rebel is a great option for short riders because of its low seat height. The seat height of the Honda Rebel 300 is 27.2 inches, and the Rebel 500 has a slightly higher seat height at 27.2 inches.
2. Kawasaki Vulcan S: The Kawasaki Vulcan S has an adjustable seat height, which can be set as low as 27.8 inches. This is a great feature for shorter riders, as it allows them to find the perfect riding position.
3. Yamaha V Star 250: The Yamaha V Star 250 has a seat height of 27 inches, making it another great option for shorter riders. It's also lightweight and easy to handle, making it a great choice for new riders.
4. Suzuki SV650: The Suzuki SV650 has a seat height of 30.9 inches, which may seem a bit high for shorter riders. However, the bike's narrow profile and lightweight design make it easy to handle, even for riders with shorter legs.
5. Harley-Davidson Street 500: The Harley-Davidson Street 500 has a seat height of 28 inches, making it a great option for shorter riders who want to ride a Harley. It's also lightweight and easy to handle, making it a great choice for new riders.
It's important for a rider to feel comfortable while riding, so I would recommend going to a dealership and sitting on each bike to determine which one feels the most comfortable and suits your needs best.