I'm happy to help out!!
I'm going to have a guide out rather soon on moving through things like bittrex, poloniex and blocktrades. Also hoping to get some idea of the lowest fees with that being such a problem lately..but I'll have to see what I can find. Though, I've seen a lot of people moving things to LTC or ETH instead of BTC (which can still be sent to coinbase and cashed out to your bank) to get lower fees.

If it's helpful..one of my old guides walked through sending from Steemit --> Coinbase --> your bank: https://steemit.com/steem-help/@sykochica/answering-common-questions-how-do-i-spend-money-from-my-steemit-wallet

Feel free to ask if you have questions...will try to help out.