Finding your ideal customer profile as a startup

There are countless of survey tools around (surveymonkey, google forms, typeform, responster) but how do you usually find respondents for your market research?

Would you find valuable a tool that takes care of respondent targeting and acquisition and optimizes for finding an ideal customer profile (a small set of traits or characteristics of people that are very likely to use your application or buy your product)?

Are you aware of any tools like this? How do you usually tackle this issue?