Though unlike 99.99% of the rest of you, pretty sure when I hit the dominion and changeling stuff I'm going to nope out. I have some vague recollection of bits and pieces I caught and people I've talked to about this stuff. I'm guessing that's what you're talking about?
I like the moral wrangling and optimism; with characters I can admire. Not the "darker, grittier" and action-y stuff. But I'll give it a try!
The beauty of old trek is in its episodic nature. Don’t like that episode? Skip it. There’s plenty of great episodes on DS9 that completely sidestep the dominion war. Though I have to say the one with Quark teaching the Vulcan about the price of peace is fantastic.
Might be a good idea to take a look at imdb episode ratings and just ignore all <7.5 episodes, unless the synopsis sounds interesting. Unless you have time to just watch everything of course.