Wall color looks nothing like Benjamin Moore Rockport Gray HC105 which has a green undertone. Might want to check your records and not give misleading information.

Someone above called the answer to the wall color question (BM Rockport Gray HC105) "misleading information." It's more likely that the paint IS Rockport Gray, but the photo as a whole has been color-shifted for publishing purposes. It can be risky to copy a paint color viewed in a photo, whether in a magazine or online, simply because images are so often tweaked in Photoshop. Be sure to compare paint chips to inspiration photos before committing to a paint color.

Your sofa is lovely, but it looks like it isn't an English roll arm, just a roll arm. An English roll arm curves from front to back, as seen in the photos BeverlyFLADeziner and Maureen posted.

You could do a table that's approximately the height of the top of the roll arm, or one that hits below the roll. Here's a Pottery Barn picture that shows both approaches:

Personally, I think the one that hits at the top of the arm is more attractive, and would probably be more functional if you intend to set drinks or eyeglasses on your side tables, but if you want to showcase the look of the rolled arm, you could always opt for the lower table. Walker Edison's Alissa side table is 16" and similar in style to your coffee table: https://walkeredison.com/products/16-round-side-tables

Would you consider an ottoman as an end table?

Also note that Beverly’s lovely suggestions are all ROUND tables, not square or rectangular.