IT Certificate --- ProgrammingHub
Programming Language --- ProgrammingHub/freeCodeCamp/Saylor
AWS Certificate --- ProgrammingHub
Sales --- LinkedIn Learning Courses/Saylor
Sales Management --- HubSpot Academy
Salesforce --- Trailhead
Excel/Spreadsheets --- Saylor
Management/Leadership --- Saylor
Customer Service --- Saylor
Digital Marketing --- HubSpot Academy
Basic Computer Skills --- GCF Global (Tutoring Page)
If you can't find what you're looking for here, look into the websites for specific courses