Hi @pattsai ,
It is currently not possible to customize the order of values in a filter dropdown in Amazon QuickSight. The values are sorted alphabetically by default. Some workarounds include adding numbers in front of the values to force a custom order. Refer Issue on Dropdown parameter - #2 by royyung.
In your case, you can re-order the dropdown by renaming the reports ( add numbers in front of it) to display the order of your choice.