So in India, in a preserve, live a subspecies of lion called the Asiatic Lion. Asiatic lions were once wide spread, but like the Caspian Tiger, fell victim to the Roman Colosseum/Greek Olympics.

Here is a Wikipedia article about said Asiatic Lion:

https://en.wikipedia.org/wiki/Asiatic_lion

Since Asiatic Lions are endangered/rare, you could have a slight chance of coming across an asiatic lioness while you are exploring, or you could make it a Raffle Lioness.

I think the Asiatic Lion could make a great addition to the game since it exists Irl