Balotelli comes off contract in June.
“It's obvious that whoever takes Mario on a free transfer will be getting a bargain," Raiola said on Radio Kiss Kiss Napoli.
“If I were Napoli I'd take him, he's one of the best strikers around. Sarri has had an enormous growth and he'd be ideal for the Naples environment.
“Balotelli is explosive on the pitch, he's made strides forward with his behaviour. Napoli would be fantastic for a player with his characteristics and his character.
“There are players who are afraid to come to Naples, but clearly not him. They have to believe to take him, but it would be a bargain.
“Mario wouldn't suffer with the expectations from the fans, he's already been at the biggest clubs in the world. The passion of the fans only does good for him, just like [Zlatan] Ibrahimovic.
“The Scudetto? The fact Napoli are fighting for that objective is important, they have a great chance this year.
“Now they have to keep working as they are doing, even if competing with Juventus isn't easy because they're used to handling these pressures."