Anytime I see a total of 6 or lower on a Sharks game my immediate lean is to the Over. That's the case here. 
The Golden Knights rank 13th in scoring averaging 3.1 goals a game. They have four good lines to keep the pressure on the Sharks, who are the worst defensive team in the NHL giving up 3.8 goals a game. 
San Jose has surrendered at least 3 goals in 16 of its 20 games this season. The Sharks have permitted 4 or more goals in half of their games. 
The Sharks are capable on offense. They were averaging 4.7 goals in their last four games until getting shut out, 4-0, at home by Colorado two days ao. The Sharks would like to atone for getting blanked with a big offensive performance. 
This has become a fierce rivalry. These teams dislike each other very much. So running up a score could happen if one team breaks out to a big lead.