Many subjects can be explored through classification : that is, identifying and illustrating different types, varieties, and methods.
If you have topic in mind you can try research paper writing service
A classification essay is not difficult to write if you think carefully, use common sense and logic, stick to a single classification principle and observe the structure.
Our tool is great to generate research paper topics as well. College students as well as university professors could easily generate a great number of custom topics for their research papers.