are u sure u need one? if u have too much furniture u risk making it look like a furniture store
more pictures

Sometimes other manufacturers sell alike fabrics. You can take the pillow to a store that sells the matching love seat and see if you can match up a fabric swatch to the sample. A lot of manufacturers do COM which is customers own material, meaning you purchase fabric yardage from whatever vendor and they put if on your desired frame (love seat). Alternatively, you could just find a coordinating cover to put on the love seat with the sofa coloring in the pattern, again by using a pillow to match while in the store... Hope that helps!

Unfortunately the chair fabric is also unavailable. I was thinking of pulling a color from the chair possibly green for the love seat and keeping the loveseat the same style as the couch. We have four children, so practically speaking a loveseat would work best for our family. Having trouble finding an exact match for the green. Maybe this color would work?

Here's another view of the room. It's 20' x17'

Another option is to match the second couch or loveseat to the leather ottoman, in the same style as the original sofa. You can have a couple of leather cushions or rolls made to match and put them on the sofa and chair. We can help by sending you leather samples. Do you have a budget in mind?