You do not paint tile. That is tacky. You leave it alone if you cannot afford to redo it at the same time.

Painting the grout black would be a good interim solution until you can afford to replace the tile.

It looks like you actually use your fireplace, so you probably realize the black tile on the floor can handle a wayward spark that could damage the lvp if placed as Beverly suggests. Her inspiration picture is lovely if trendy, but it would be the end of using the fireplace safely.

You gravitate towards beige. Is that because you love it, or are you just playing it safe? Anyway, the yellow-beigeness of the room makes the black stand out and look small at the same time. Black is a good tile color for a fireplace because it hides soot. Stone facing for the stack would be awesome…not too rustic though… Think upscale bar, not log cabin. I'm guessing you think that's outside your budget though. I'm just pointing out that the black tile fireplace tile is NOT the problem so DON'T invest much in changing it. Cleaning the grout may show it has only greyed due to the ash. After cleaning, you could touch up with the marker if you want, and confirm it is safe around a fireplace. 

Beverly is right that the mantle cheapens the fireplace area. You can replace it, but doing so with a rustic look will make it look…well, rustic and less refined. If you are skilled at painting, paint the existing one a black laquer with a decorative gold line. Black laquer will repeat the black tile effect and visually/mentally enlarge the fireplace focal area. The gold line will add elegance. Can you afford to replace the fireplace grill with a shiny gold-colored brass one? Black and gold are fantastic together and very classy. 

With this, though, instead of choosing a warm golden color for your floor, instead choose one with cool undertones. You can go light if you want, or you can go dark, just keep it more red-brown than yellow or orange. 

In addition, if it is time to paint your walls, choose a cooler beige brown, like a light mushroom or cocoa. If you add stone, great. Otherwise, paint the stack around the fireplace a darker version of the cooler beige you choose for the walls to make it visually/mentally stand out, more of a statement/focal point, and to provide less contrast with the black tile.

Your tile is the best and smartest choice in the room and the other choices need to go WITH it. Start with a cool brown flooring.

Looked again… Use a satin paint on the fireplace stack, flat on the walls. On the white trim around the black tile go even darker in the cool mushroom family I suggested for your walls and still in a satin. I see now the grout looks white. Leave it to repeat the white door casings. Very few color combinations are classier than black, white, and gold. And they make a great backdrop for colorful accents.

The black will be fine but that mantel has to go and since you are doing a light colored "wood" floor I would do a nice wood mantel just simple and the whole width of the wall. Piant that trim the wall color along with the wall and be done. Is that a gas FP ?

Thank you all! It never even occurred to me to change the mantle since my mind was always focused on the black tile. I see now that that changing that would make a big difference! (And thank you for looking past the pile of dog toys lol)

I didn't choose the wall color. That color was there when I bought the house and it was in good enough condition that I just worked around it. All of the other rooms in the house were a horrible terra cotta orange (flat paint showing the finger print of everyone who entered I believe!) and I had my hands full painting all of those rooms one at a time so this one wasn't high on the list. I do plan on painting this room when I do some updates to the kitchen, probably next year. (And I know I should probably paint before getting the floors done but it's a matter of having the help to move furniture, time off work, boarding for my dog and budget. The stars have aligned for me to finally have all of that in place so floors have to be done over the holidays, and I won't have time to paint before that.

The fireplace is wood burning but I've never used it (yet). I do want the option to use it though so I do need to keep the tile on the floor and not take the LVP all the way to the wall there.

Wonderful input. You have given me even more to think about (and a mantle to shop for). Thank you so much!