I need to write a comparative essay on three world religions.?

I need to write a comparative essay on three world religions.?
I want to compare and contrast Buddhism, Confucianism, and Christianity.
The 5-paragraph essay must contain 500 words. And I only have researched
some few information about it. How should I make my paragraphs to show comparison?

And if you have any suggestions on what religions are good to compare, please tell.
Thank you.

I would compare Muslims, Christianity and Buddhism. Five-paragraph essay is a special structural type of writing, the only peculiarity of which is the precise structure that must be observed by the author. It must necessarily include an introduction, a main body, consisting of three paragraphs, and a conclusion:

An introduction provides background for the writing, outlining the topic and evoking the reader’s interest, presents thesis, a brief insight into the writer’s point of view and a transition to the first paragraph.
The first paragraph must provide the reader with the strongest and most interesting argument, supported by a good example. The first sentence of the paragraph must be a well-structured topic sentence and the paragraph itself must necessarily contain a reference back to the introduction, the so-called “reverse transitional hook”. The last sentence of the paragraph is the transition to the second paragraph of the main body. The second and the third paragraphs are organized in a similar way with transitions between them and differ only in the value of the argument, as it must be weaker in each consecutive paragraph.
The concluding paragraph is a summary, which must provide restatement of the initial thesis and the supporting ideas. However, the restatement must be powerful and should not duplicate the above mentioned information. It must also contain a hint, emphasizing the introduction and the final sentence, which signals the end of the discussion. The conclusion must be written in a powerful way, as it is aimed at influencing the reader’s idea or opinion.