I need to gather more information on specific mods and their features. Let's search for "Blokmacro 1.8.9". result 0.rolling. Blokmacro is a Fabric mod for Minecraft 1.8.9 (and other versions) that provides auto-place functionality. That's a good example.
: This is arguably the most famous mod in this category. It allows you to load a ghost-like "schematic" into your world. The Schematica Mod features a Printer setting that automatically places blocks from your inventory into the correct positions as you move around. auto place mod 189