I am working on an idea to help companies reach tech candidates. I am trying to figure out the best way to reach out to Recruitment and HR managers.
The easiest way would probably be to join a recruiter clack group (e.g. https://weirdlyhub.com/peoplepeople-slack-community-recruiters-hr/) and reach out to people there.
You could also do a search on LinkedIn for: 'recruiter', and if you have a particular geographic area you want to focus on just include that in the search too.
Reaching out to the people you find on those platforms can be done in a couple different ways, and the best one will depend on what it is you're trying to communicate or ask. If you'd like more specific advice relevant to your particular product or service, feel free to send along further information,