During the course, we will be using ModelSerializer, but it's worth knowing about its alternatives.

1. Serializer: This is the base serializer class in DRF. You can use it for serializing (converting to formats like JSON) and deserializing (converting from JSON back to Python objects) your Django models;

2. HyperlinkedModelSerializer: Similar to ModelSerializer, this serializer automatically generates serializers for Django models but also includes hyperlinks to related objects;

3. SerializerMethodField: This field allows you to use custom methods for data serialization. You can define your own serialization logic based on your needs;

4. PrimaryKeyRelatedField and StringRelatedField: These fields help with handling relationships between objects. PrimaryKeyRelatedField represents relationships using the primary key, while StringRelatedField uses a string representation;

5. ListSerializer: This serializer is used for serializing lists of objects;

6. Nested serializers: DRF allows nesting serializers within one another to handle complex model relationships;

7. Custom serializers: You can also create custom serializers that suit your specific needs.

Each of these serializers has its own characteristics and uses, and the choice of a specific serializer depends on your requirements and project specifics.