Ord-Litecoin
While I think Doge is better suited for this whole meme coin/ordinals fad (Disclaimer: I don't own any Doge, too volatile ), it has still not adopted Taproot so LTC had an advantage there. And there seems to be quite some usage of this feature (while it waned a bit after the Ordinals craze slowed down, it's still almost doubling the pre-ordinals transaction density).
Regarding stablecoins: Centralized stablecoins are very easy to deploy on all BTC-based blockchains because there are lots of token protocols (Omni, Counterparty, now also the ultra-inefficient BRC-20 , but also Taproot Assets/RGB may be adopted by LTC). What would be more difficult are algorithmic stablecoins. I'm not totally sure, but I believe that in the past Tether or USDC had also a LTC token.