Substitute Management Software?!

Sorry if not allowed, but I'm looking for suggestions.

Is there a software out there where I can enter in all the teachers and subs schedules, then have it be able to automatically assign a sub? For example, once everyone is entered into the system, I can just tell the system Teacher A and T are out for the day and it will automatically tell me which subs can cover.

My school wants me to do this manually by referring to excel sheets, but I feel like there has to be a better way.