Used this a couple times in the past - https://www.fiverr.com/s/7Yb42x4
I found a freelancer on Fiverr if you need
Using a mix of Zapmail, Premium Inboxes & Hypertide
Pretty solid provider for email just haven't used them for phone numbers before so can't say
LeadMagic if you want to save on credits or cost else Wiza or BetterContact
Run a lookup against your email sequencer e.g. in Smartlead you can run lookup lead in campaign
It's this one - https://rapidapi.com/alexanderxbx/api/maps-data/pricing
Rapid API - way cheaper and a lot higher coverage! Gets you all the results in one run vs searching for the same keyword multiple times to get multi page data from serper.dev
Bettercontact works great for us - a little pricy if you use clay credits (30 credits per row)
Check the credits you have in instantly it's not a Clay error if you are using your own API key
