I think Real Madrid better sell Hazard during have good price than waiting he back good performance, more than three season on Barnabeu Hazard never give good performance like on Chelsea before. Better looking great partner for Benzema and Mbappe is the best option but have higher value, so barter Hazard and mbappe is the best way if PSG want deal it.
Hazard is not that bad of a player, I mean dude is not as good as expected but he is not that bad neither. Right now we are seeing him basically just be helpful and sometimes that's more than enough. He was bought as a superstar and when he didn't provide that people wanted to see him gone, but the reality is that there are plenty of players that can find a place in Madrid without being a superstar, just be decent and you will be fine, Hazard is that type of player. However they seriously need a superstar, specially at striker because Benzema is not getting any younger.
If I were them I would get rid of Benzema right now when he can still provide a tad bit and get a super young talent, like Haaland is talked for Chelsea and I believe Real could try to chase him down as well, 150 million is a ton of cash but if they could manage to get it, they would be unstoppable for a few more years easily.