N-Panel Search is a Blender add-on by hodgson3d that locates addon tabs in the N-Panel through a search field instead of scrolling the vertical tab strip. Click the search icon in the 3D viewport header, type, and the matching addon tab expands right where you're working.
Fuzzy search matches tabs even when you don't type their names exactly, and the tool keeps recently searched tabs at the top of the list for quicker selection. You can assign a hotkey to the search function, and the add-on works across workspaces including the 3D View, UV Editor, Compositor and VSE. It is also compatible with Simple Tabs and keeps a clean, unobtrusive interface.
It supports Blender versions 4.2 to 4.5, ships as an add-on under the GPL license, and is Blender Extension compatible. A demo video is available on the developer's page.