Just an opinion, but I could see Danault and his agent looking at Mikael Backlund as a comparable for a contract. Backlund is at a $5.35M AAV. He is a 2C that has been a 40+ point player for a few years (and had one season at 53 pts). He started his 40+ point seasons in his age 26-27 season. Danault's first 40-point season, he was in his age 23-24 season.
Danault is also a 40+ point center, who also hit 53 pts once. He was on pace for another 50+ point season this year. And one year he had 25 points in 52 games, due to injuries. And in an 82 game season, that would have been another 40-point season.
So with all that in mind, I could see him use Mikael Backlund's contract as a comparable.
If that is the case, would you be okay with Danault at $5.35M for multiple years? Ideally, he's your 3C, but he would have a bigger role than your typical 3C. He can slot into your Top-6, plays against the leagues best players, generates offense, is a key piece of your PK. He'd be a Top-9 center that could get anywhere between 16-20 minutes a night.