It's easy to find likes services, but comments are a little tricky.
The problem is not that these services work or not, but that the number of likes decreases during a period of time, for example after a week or a month, and the second is that your account may be banned if someone reports these services.
So in short, the risks are greater than the benefits.
As for services, you can ask --->
https://bitcointalk.org/index.php?action=profile;u=553914, I remember that he was providing this service.