Has the most tokenised stocks and likely to be the cheapest for withdrawal for a particular coin.

Check it out here.

Recommended coins for withdrawal: Low fees, so any coin with low gas fees. Look at non-ERC20 coins like LTC and XLM. Also the recommended exchange for withdrawing ERC20 coins.

Update: Went into bankruptcy due to siphoning customer funds in its sister company Alameda Research. Dead and not usable now.