First, create an account on Poloniex and deposit some bitcoins to the Lending wallet.
First, create an account on Bitfinex and transfer some bitcoins or USD to the Funding wallet.
First, create an account on Quoine and transfer some money to the wallet.
The best strategies to use depend on your needs and expectations. Here some example case studies for some investor profiles.
You can earn interest by shorting the Bitmex XBTUSD swap product. More information on the Bitmex blog.
When entering a position with Cryptolend bot, you accept to short Bitmex XBTUSD derivatives. Your bitcoins will be changed into USD equivalent value, so the loss in BTC value can be substantial.