I am working on a funding application form using PowerApps, which have multiple fund sources that are available for application. I was wondering what is better way to handle this one to many relation in PowerApps? Thanks

I am working on a funding application form using PowerApps, which have multiple fund sources that are available for application. I was wondering what is better way to handle this one to many relation in PowerApps? Thanks
The answer to that is dependent on the data source that you are using. The best would be to use a true relational database like Dataverse (formerly CDS) or SQL. In terms of Power Apps you can display a one to many relationship using two galleries where the second gallery is the child data source filtered by the key from the selected item in the first gallery.