The three-body tag (5 questions) has the best name, but the tag info is written like a full tag Wiki rather than an excerpt. I think it can be shortened.
The cr3bp tag (7 questions) has an admittedly cryptic name (that's on me) but I like the tag info:
Questions relating to the circular restricted three-body problem, where two large bodies orbit their center of mass and the third mass is negligible compared to the larger ones.
Are the questions on these tags close enough to be merged together? Does there need to be any distinction between proper CR3BP questions and those about three (or more) bodies in general?