Litecoin has a whole Ordinals ecosystem. It's less developed than the one on Bitcoin but it exists.
I managed to get a Litecoin Punk on auction back in early March, sub 1k inscription.
I wrote this guest piece back in April. Hope it helps give an overview. The Punks are the cover image.
https://www.lookintolitecoin.com/post/wait-litecoin-has-ordinals-too