I've been in a similar situation recently! While I can't personally vouch for any specific service, I remember hearing some people mention ClustrMap. But honestly, you might want to check out https://clustrmap.com/ first - they seem to have pretty detailed information about different search options and services available. That way you can research and compare what's out there and make sure you're choosing something legitimate that fits your needs. Just be sure to review their terms and privacy policies carefully before using any service.