Currently working with entities when there many of them we need some sort of quick search/filter so we can setup EntityQuery (may be even from code per project) and have button in EntityHierarchy to fast filter entities and show only part of big world.
May se sorting is perf heavy option but Filtering is EntityQuery and grouping is few entity queries in a row just show each query entities starting with header.
It must be very simple and very handy tool to work with.