Opening for black
You can't really say one is better or the other. I guess you could say Scandinavian is a little worse than them.
If you decide to play Sicillian, prepare for "I will play Italian no matter what" Bowdler attack.
But again, trying to decide whether an opening is better than the other in move two is a fools journey especially when we talk about the two most respected answers to e4.
If you go for Scandinavian, do not ever check the King after you take on d5. Its an absolute waste of a tempo. I prefer Qa5 the main line. You should look into ideas more than memorisation of lines. Such as when to move the c pawn to potential retreat the queen, opposide side castling, etc.
You can also try French or Caro Kann.
Play whatever you want, don't go memorising 10s of moves. Learn ideas, learn when to use them, learn when not to.