I used to win a few quid on Graham Alexander (Burnley defender and captain) a few years back. He took our penalties and rarely missed. In our first season in the Premier League, i backed him at good odds to score from the spot more times than any other player. Unfortunately, Lampard netted 1 more than Alexander in a season when his team were Champions, and Burnley were relegated.
Regarding Haaland, i think he was odds-on to score anytime, but he doesn't get that many with his head (5, i think), which the price reflected.