The site I use for this is called bitconnect
How does this work:
You sign up for bitconnect and you deposit bitcoin which you exchange on their site for bitconnect token
those bitconnect token you lend out to a trading bot
the trading bot will trade bitconnect token and pays you out daily interesst, currently about 1% of your loan which you can withdraw every day
the money you invest is locked up for a maximum of 299 days and you receive back your loan after that
Right now you can earn with this

I also have a youtube channel were I explain everything in detail
watch on youtube
Because I try to promote my youtube channel I give you guys a great deal to get started on bitconnect
everyone that signs up using my link will get 10% back on his first loan immediatly after lending it out
all you need to do to claim that bonus is
sign up with my referral link
lend out a minimum of 100$
send an email to sengazumi@gmail.com with your username, a screenshot of your first loan and your bitcoin address
you will receive your sign up bonus within 24 hours
Im also in charge of the german speaking bitconnect team
you can see the german speaking thread here
please contact me if you have questions or if you need help
Lets have fun and earn money
Sign up here:
https://bitconnect.co/?ref=darknetguru