What type of snakes are good for beginners?

Corn snake, king snakes, garter snakes, ball python, carpet python. They are range in different sizes so that's up to you and what you think you can handle or what you want to handle. Ball pythons tend to fast so they may not always eat which is not necessarily a problem. Corn snakes will be your cheapest option and offer you many different colors. All those listed are easy to take care of provided their right husbandry needs are meet.