Signature campaigns and Digibytes are your best options.
Hello, can u explain to me what Digibytes are?
I am interested in earning much, I have much free time today.
DigiByte is an alt coin. You can earn Digibytes by playing CS:GO and LOL. They do have a thread in here -->
https://bitcointalk.org/index.php?topic=408268.0, you might want to check that out to have a detailed information. Since you mentioned that you have "much free time" today, spend that time to go deeper and learn how you would earn DigiBytes.