He nearly scored headers against Benevento and Parma and I remember correctly, a lot of his Barca goals were headers too. On the other hand, a football has never touched Eriksen's head in his life. Sensi and Barella are tit-height compared to most defenders while Brozovic is weak and Gagliardini sucks.
Headers aside, it's clear Conte prizes him for his combative nature. Vidal is certainly the most aggressive of all our midfielders and despite his age and decline, he's arguably still equal to any of our mids offensively. Sadly, with age though, comes reduced brain capacity. These days Vidal spends most of the game horizontal - either flying through the air mid-kick, or rolling around on the ground after committing an insane challenge or pretending he's dying.