Which rug looks best in this living room? And curtain help?

I have been trying to pick a rug for this room for 2 full months and I’m driving myself and my loved ones absolutely mad :’) do any of these rugs work for the space?

I like a midcentury, wood-heavy vibe but I’m also trying to keep the place from being overwhelmed by dark and brown colors. At the same time, I feel like all of the lighter accents in this room are either beige or a beigey cream color, so I’m hesitant to pull something like the green/white checkered rug because I feel like the brighter white will stick out like a sore thumb.

We can’t replace the couch so I’m hoping I can brighten things up but stay within the correct vibe using a rug and some different curtains.

I really just need someone to tell me what to do at this point. I’m so lost! Accepting all advice