Hitmontop, Hitmonchan and Hitmonlee. Tyrogue can learn Foresight, which will make Ghost types no longer immune to normal & fighting moves, allowing you to Rapid Spin. The three Hitmon Pokemon will learn Rapid Spin after evolving from Tyrogue at level 20.
Odour Sleuth will also have the same effect; the only Pokemon that can learn that and Rapid Spin is Phanpy/ Donphan.
Also lets you get rid of Sableye pretty quickly since fighting moves will be x2.
Technically, any Pokemon with the Scrappy ability and Rapid Spin will be able to use the move on Ghost types, but there isn't a Pokemon that has both of them.
There is no other way to make Ghost types damageable by normal/ fighting moves, unless the Ghost Pokemon is holding a Ring Target.
There is a way to deal with Gengar (which is a common sweeper + spin blocker), and that's Starmie, but this requires prediction. For the most part if you switch to Starmie your opponent will predict Rapid Spin, and switch to Gengar in order to sweep you with Shadow Ball. You have to be ready for that and use Psychic instead, which will clear Gengar and allow you to spin.