Think about the types of evidence your discourse community values.
Consider: What types of evidence does your community value? What will you use? Examples? Quotes? Hypotheticals? Primary research? Secondary research?
Now think about the sources you plan to use for your research argument.
Complete a STAR evaluation of your research/evidence thus far: Is it sufficient? Typical for your genre/community? Would it be considered accurate? Is it relevant for your topic/field? Why or why not? What area needs improvement and what will you do to improve in that area?