The Binance "DEX" is NOT a DEX... Jesus!!
I HATE people who thinks Binance is running a real DEX, when it's NOT a DEX by any means! All the nodes verfiying the transactions on the network is ran and owned by Binance themselves, that's NOT decentralized at all!
Have you taken a look at Blocknet? They offer TONS of pairs.
More info here:
https://blockdx.com/