In MineCraft 1.11, a new “locate” command was added. This command shows the coordinates of the closest EndCity, Fortress, Mansion, Mineshaft, Monument, Stronghold, Temple and village or other special buildings/structures in newer versions of Minecraft.
All you have to do is use the following command:
/locate (AND Then use TAB)
You can then use “tab” and it shows the different arguments you can use. Or you can just write the argument. Like
Which will show the nearest EndCity
In newer versions there is also a Buried_Treasure, EndCity, Fortress, Mansion, Mineshaft, Monument, Ocean_Ruin, Shipwreck, Stronghold, Desert_Pyramid, Igloo, Jungle_Pyramid, Swamp_Hut, Village and Pillager_Out
So best advice would be to write /locate TAB, and then use the tab button, to see which kind of arguments you can use in the version of Minecraft that you plays.