So many possiblilites but we need to know your style for room (transitional? contemporary? modern farmhouse? etc.) and do you have a big or small budget.

My style is transistional. I really like the linear fireplaces which are modern but we may replace the fireplace with the linear.

This is the sort of thing where you're better of searching " fireplace" in the photos here and look at what style you lean towards. There are so many options. At least give people an idea what you like, otherwise anyone can just post any kind of fireplace and be nowhere near in what your taste is like.

You have quite a bit in your ideabook and none of those jump out at you?

We need to see pics of the other walls of the room to advise correctly.

I'm going to close this thread and start a new one. I have more pics and some fireplaces I like.

Don't start a new thread, just add your pics to this one!

I would just paint it.