There are sites like https://www.chunkbase.com/apps/dungeon-finder where you enter the seed and all spawners in the world are displayed.
I would now like to find a triple (or more) skeletal spawner in my world. Means: All 3 spawners are within range of the player at the same time.
At Chunkbase I would have to scroll through the world manually for hours to find such constellations by chance. Are there tools for this? To automatically search for multiple spawners of a certain type on my seed.
I think there was a map editor mcedit for Minecraft Mal, it had a search function, but whether it can work with the current lists and the seed generator, I have no idea.
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