Thanks linkhyrule5 for suggesting this.
Post your request for Sidekicks or your desire to be a sidekick in the comment section below.
Send a personal message to your potential match to start communicating instead of replying in the thread, to save space and avoid biases, besides privacy.
 Mathias Zamman suggests some questions:
Questions for both Heroes and Sidekicks (and Dragons, etc.)
- Post a short description of yourself: personality, skills, general goals.
- Where do you live?
- How do you see the contact between the two of you going?
- What you require in your counterpart: This can be a bit vague but it might be too hard to verbalize for some people
Questions for Heroes:
- What is your goal?
- Why are you a Hero?
- Why do you require a Sidekick?
- What specific tasks would a Sidekick perform for you?
- What qualities would you not want in a Sidekick?
Questions for Sidekicks:
- What sort of goals are you looking for?
- Why are you Sidekick material?
- Why do you require a Hero?
- What sort of tasks could you do for a Hero?
- What qualities don't you want in a Hero?