People who can find a manufacturer that you are looking for.
To everyone starting out: always, always hire one. They'll make sure you are woking with an actual factory and not a reseller, will review the certifications etc.
There are countless stories about how people lose all of theirs savings because they chose the wrong supplier.
We use sourcebirds.com for that, it’s sort of an agency/network of sourcing agents who helps with everything from finding a manufacturer, inspection or developing a custom product etc.
But you can also try to use fiverr or up work, it’s just a bit difficult to find someone who actually knows their stuff/knows about safety regulations/certifications etc.
Anyway I’d recommend to reach out to a few different companies/people and see who is the best fit for you