A PATTERN FOR PERSUASION And Some suggestions  possible topics

From Strategies (p.345-p.356)

Some suggestions:

1 . A human approach. The writer strikes the reader as an honest, believable person who has a genuine interest in his material and in his reader.
2. Solid evidence. The writer does not rely on mere assertion; he uses pertinent facts, details, statistics, or testimony from authorities to back up his statements.
3. Good logic. The writer makes the right connections between his pieces of evidence; he creates accurate generalizations and draws proper conclusions.  If the evidence warrants, the writer makes use of the thinking and organization strategies of cause and effect, comparison and contrast, analogy, etc.
4. An avoidance of fallacy . The writer not only avoids logical errors, he also avoids irrelevancies, false appeals to emotion, or question begging. ( These and other fallacies are explained in this chapter.)
5. A clear argumentative organization.  The writer organizes his argument so that his reader can understand all its parts and how the parts relate to each other and to the thesis.

6. An avoidance of generalization
It is wise to acquire the habit of using qualifying words and phrases where necessary, particularly when you are writing about people and their activities.  But be wary of words that state an absolute condition, words like always, never, continually, every.  also be wary of implying these words in sentences like ["All] people love freedom, or ["All] women dislike men who smoke cigars." here is a list of qualifying words and phrase that you can use with some assurance:
 

usually	often	a lot	customarily
nearly	occasionally	many	a little bit
some	sometimes	a great deal	ordinarily
generally	a few	most	almost all