No, there's not. It's a fundamental principle among PoS cryptocurrencies that the work needs to have no additional utility or else it will help the attacker "subsidize" 51% attacks against the cryptocurrency you've built, because now they can both launch 51% attacks which cost $X abut subsidize it by selling the useful compute for $Y they've gotten by launching the attack, which ends up costing $X - $Y.

Compared with a PoS cryptocurrency yielding no useful compute as a side effect, it costs $Y cheaper for someone to 51% attack.