We'll need more information. Please provide a hand drawn floor plan with measurements. Also, please discover your style by putting into the top HOUZZ search box different styles (one at a time - examples - transitional, casual, eclectic.)

https://www.thriftydecorchick.com/2016/01/tips-for-decorating-around-tv.html

Yup. Or built ins… we can’t see anything to really know what your style is and what you are working with… show more pics. And let us know what you need to keep and what you can rid of.

I'd go with built-ins. Well worth it.

We need to see the entire space for the best suggestions. IMO Built-ins would overwhelm the space but without more info not much help.The walls also look to be angled

Consider painting that eentire alcov area the blue in the rug. Mount the t v on the wall and design a surround. IKEA has everything you would need.

Here are a few ideas of what you might be able to do around your TV area:

The Van Buren Project · More Info

Modern Resort Living · More Info

Eagle Creek Home Transformation · More Info