Hi @Jimeh ,
Do you want to create tasks on SharePoint Tasks list when an employee onboarding?
I assume that a new employee will be first created in a custom SharePoint list, so we can trigger the flow by using “When an item is created”.
To set up multiple tasks in Tasks list, we may need to add separate Create item action for each task.
I have configured the flow likes below for your reference:

Best regards,
Mabel