Suggest me a book/series to cure my Red Rising hangover

I finished Lightbringer at the end of June and the hangover has been the worst I’ve ever experienced. I have finished three books since then but even books I’d normally enjoy, feel meh, and I’ve DNF’d at least 6.

What I loved about the series: really fleshed out characters that feel like friends, thought provoking, fast paced but slowed down at the right moments, morally ambiguous/complex characters but NOT morally gray (I.e. I sometimes do bad things that benefit my noble cause or I make mistakes and reap the consequences of those mistakes) , Darrow being a romantic, but also his inner turmoil.

Things I don’t like in books: drawn out open door scenes, main plot is romance, truly morally gray characters (I.e. I do evil things to benefit me solely and if I do something good for someone else it’s because it benefits me too).