Microsoft Teams Use Case Suggestions

Hello, I am looking for some advice from Teams experts out there on a specific use case.

I work at a K-12 school and we have a tremendous number of events each year—more and more.  They can be quite complicated needing different levels of approval and resources from multiple departments.  I would like to work on developing a set of Forms and Flows to start tackling some of these approvals and resource assignments.  I would like to find a way/place to collect these approval requests that can be reviewed and acted upon by the team of people who handle most of our events. 

I would like to figure out a way to setup a Teams site for this group with a channel dedicated to collecting the incoming requests and allowing the group to review and approve/reject the requests right from teams.  I am visualizing some type of list that you can sort, click on to get more details, and easy access buttons or flags to approve or not.    I am hoping something better than a SharePoint list but maybe something new?  Or a 3rd party add on?

Suggestions? 

Thanks,

Robert