For OP better to doing a stake.
I use Eobot
they also have a "faucet" feature so you can claim some free coins everyday (your choice...whatever you are mining at the time of your claim)
Here is my profile and current speed >>
https://www.eobot.com/user/38628-snip-
I used eobot for over 7 months ago, but never get ROI

scam? Probably. And their use different altcoin for mining option, sometime the altcoin which i still mining gone and replaced to another altcoin
~iki