I’d suggest you to start with finding your audience here, on Reddit. You can do this cheap/expensive way, faster/slower - depends on your resources.

For example, I use a tool for organic reachouts (if someone needs help in reddit marketing) - to do organic growth for my products.

Beside, I use a reddit ad library - to find examples of paid posts in my niches (and craft something that engages with the audience). This way is faster to collect your potential leads, but needs budgets.

Usually if you don’t have experience - start with cheaper/slower methods, and then scale what works.

Sorry for the offtopic, not trying to hijack your Quora question - but have you tried doing this strategy on Reddit (like, answering questions in the relevant subs)? To me this tactic sounds like a great one for Reddit.

Didn’t have experience with Quora though -_-