1. professional knowledge: the reviewer should have professional knowledge related to the topic of the paper. They need to be able to understand and evaluate your research methods, data analysis and conclusions.

2. Research field: The reviewer should have rich experience and knowledge in your research field. They should be aware of the latest developments and trends in your research field.

3. Fairness: Judges should be fair and will not affect their own evaluation because of personal prejudice or conflicts of interest.

4. Time: Reviewers need to have enough time to review your paper. If your paper is complicated, you may need to choose reviewers who have more time.

5. Feedback quality: You can evaluate the feedback quality of reviewers by looking at their previous feedback. If their feedback is usually detailed and constructive, then they may be good commentators.

6. Availability: Reviewers need to be willing and able to complete the review task within the specified time.

7. interpersonal relationship: although this should not be the main consideration, choosing someone you know and trust as the auditor may make the whole process smoother.

When choosing a reviewer, you can ask the journal editor for advice, or use some online tools to help you find the right reviewer. Generally speaking, the selection of assessors is a process that needs to comprehensively consider multiple factors. You need to find someone who has relevant professional knowledge and can evaluate your thesis fairly and effectively.