Looking For a New Space Opera

Howdy folks!

It's been a hot minute since I've read a really compelling space opera. I absolutely adore The Lost Fleet by Jack Campbell, and the Tour of the Merrimack series by Rebecca Meluch. I also read the Star Carrier series by Ian Douglas and rather enjoyed it, though it had its issues. I know there's some others I've read and forgotten about (which is not what you want to hear about your book series), so I'd appreciate ideas for something similar to those.

I am not the biggest fan of SOIAF style writing where everyone is shitty and everything is terrible, there's no good guy and everyone loses in the end style of moral greyness. I find this to be annoying, just personal bias I guess.