First off, you'll need some Neo-Spacians to support Neos and its Contact Fusions. If you're looking to summon Neos fast and in a simple way, you should include cards like "Ancient Rules" and "Fake Hero". If you don't want to use the original Neos, you can use its alternate form, Neos Alius, and Gemini support cards, like "Superalloy Beast Raptinus", "Double Summon", "Super Double Summon", and "Unleash Your Power!" I think that should sum everything up.