Hey, I'm starting out on Cardistry and I'm wondering on what are the easiest flourishes for beginners? So far, I know how to do the spring and the thumb fan
Small hands don't matter. Get a bridge sized deck if you want, because card manufacturing companies aren't really discriminating against or for any particular size of cards as of today.
As for starting moves, please check the past threads on this forum. Your question will be more than answered.