These are plugins that flew under the radar but solved specific, painful problems.
While Fredo6’s tools remain kings, SketchPlus has become the challenger for "best general toolkit." Version 2023 introduced a radical UI overhaul with a radial menu that mimics ZBrush. Sketchup Plugins 2023
While expensive, PlusSpec is the only true "BIM for residential construction" in SketchUp 2023. These are plugins that flew under the radar
Plugin: Artisan (by Dale Martens)