Since mining and missions feel really like grind I suggest to take look at combat exploration in hisec.
This is what my 5 day old character found in few hours of exploration:
Just understand that exploration is pure RNG. One day you find 1 bil i one commander spawn, other day you find nothing all day long. But it’s fun and not so grindy. You log in do few sites as time allows.
PS.
I just hope this comment wont bring to much competition to me 