It’s pure speculation and wishful thinking on my part so it’s possible he will be a hot commodity. I do think his value is held back by the fact he is not a rim protector or a creator on offense. Still, offensively efficient centers with plus defensive metrics don’t grow on trees.
On defense, he simply doesn’t give you the shot altering presence that a true 5 does. Not long enough for that role.
I love dude’s hustle and productivity, but he should be an energy bench big, earning around $10m or less per year. Anything more than that is an over pay. Trade him and try to re-sign him as a bench big.