I don't know about popup acutually but in general, I think wherever it has a long list, it should have a search box so you can search whatever you want.
In bitwig studio it has a search box above the parameter list. And it also show the parameter you touch last in a synth or fx on the top of the list.
it's not about parameter but when I try to choose a send destination for sidechain comp, it usually gets very long list and it's hard to find it. So I think a search box might be a solution for these things.