None of those overpriced top 10 alts are going to get you x10.
Check out Zencash and Zcoin. Both superior to Monero, Dash and Zcash.
Why do you prefer these over Monero specifically? Monero seems to be the one that is trusted and although it has some issues it still seems to be fairly secure. Yes it's unlikely to go up x10 but I'd imagine it'll establish itself more and many of the smaller rival coins will fall rather than see huge gains
Monero just uses mixers. With it's low volume and high fees it actually makes monero quite traceable currently. A real privacy coin should be using zero knowledge proofs (Zcoin, Zencash, Zcash currently). Miners can also collude to reveal transactions in monero apparently**. This offers the potential for a honey pot. Cryptonote is also another point of failure. If it breaks, all transaction history is visible, whereas with Zencash/Zcoin you need to break sha256 itself. I think these coins and the underlying take are currently underappreciated and overlooked due to inferior hype coins like Dash, Monero, PIVX etc. Afterall, Zcash is continually listed as a blue chip alt but the coin is still under half a billion cap. Zcoin and Zencash (superior Zcash fork) are both still under 50 million!
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https://steemit.com/cryptocurrency/@anonymint/is-monero-s-or-all-anonymity-broken