Not that I'm aware of, a couple have better technical privacy for now until the integration of full-chain membership proofs, but they are not nearly as used, and so you are trying to get privacy in a very small pool of people, which is not helpful.
They might be small now, but in a few years they will grow. Better invest now while they're still cheap. It's like buying Monero at $10. They might be hard to buy now, but so is Monero.
Fast and low fees wins the privacy game. No one wants to wait for Monero sync to complete or 10 transactions to spend again, it's just bad UX.