Highest volume is in bilaxy but it's just around $489k. The other volumes can be found in other exchange like Uniswap and other two exchanges. You can withdraw it anytime as long there's a sell order for that coin which seems it have. If I've got that amount, I'll spend my time selling it on the first exchange where it got the most volume and then the next one until I got my money on ETH or any valuable pair it got.