Secondary school contact data gap-fill

I have a spreadsheet of 67 secondary UK schools where I need to identify, by name, the people who sit in six specific roles at each school — and find their verified work email address.

You will be filling in a pre-built spreadsheet I provide. Most of the work is done — the school list, websites, addresses, phone numbers and which roles still need finding are all already mapped. Your job is to look up the names and verify the emails.
The 6 roles per school
Head Teacher
Cover Manager (the day-to-day supply booker)
School Business Manager (SBM)
Head Teacher's PA / Office Manager
Deputy or Assistant Head (with a staffing or cover portfolio if possible)
SENCO (Special Educational Needs Coordinator)
What you'll deliver
The same spreadsheet I send you, with every red "FIND" cell filled in using one of three formats:

Verified name | verified email — for example: Sample Postholder | s.postholder@exampleschool.org.uk
NAME FOUND — EMAIL NOT VERIFIED | [name] — if you can identify the postholder but cannot get a verified email
NOT FOUND — if no current postholder can be confirmed after a proper search

There are approximately 240 individual cells to fill across the 67 schools. Not every school needs all 6 — some roles are already covered and marked HAVE in green; just skip those.

You will need to have access to a range of software and resources to support you as these email addresses are not simply on the school website - therefore research and effort will be required to find and source correct validated emails.