FIFA 19 IDs sheet
This sheet has the IDs as well as other useful info for head models, teams, stadiums, nationalities, managers, tattoos, celebrations and more!
You can use the "tabs" at the bottom of the document to switch which ID list you want.
I have embedded this document into the site for your convenience. If you would like to open the Google Sheets link in a new tab, scroll to the bottom of this page and click the button.