Snap to vertices in the Foundry Nuke http://www.nukepedia.com/python/3d/locometry
Locometry allows you to snap custom geos or preselected nuke geo to animated geometries such as alembic by selecting 3 vertices.
copy everything in .nuke folder. If you already have a menu.py just copy Locometry.py and icons folder and update your own menu.py
Tested on Nuke 11.3v4 on macOS