How to promote the Q&A service?

Question

Search Engine Optimization

There is a task to promote the service of questions and answers on various topics in your city. The plan is to fill it with fictitious questions and answers to them. What else can you suggest?

Answer 1

1- Search for popular questions on local forums, answers to them on the site and you can put a link to the site from the forum if it is appropriate.
2- The same on local groups in VK, instagram, od and fb, if there are groups.
3- Motivate users to answer questions with gamification or discounts from partnerships with local businesses (cafes, beauty salons, etc.)
4- SEO optimization, of course. Be sure to include micro-markup question-answer