Gellan is a popular gelling agent and comes in two varieties, high acyl or low acyl. High acyl gellan typically results in soft, elastic gels while low acyl gellan creates hard, brittle gels. They are often combined to create a variety of textures. Gellan can also be used in spherification.
You can learn more about gelatin from my how to use gellan guide or any of the gellan articles and recipes below.