I agree with the decoenthusiaste, I think a neutral, modern couch would look great, I've included an idea below that also comes in a charcoal color. A low profile sofa with some colorful pillows would tie in the rest of the modern furniture. [Atelier Grammercy Sofa, Beige[(https://www.houzz.com/products/atelier-grammercy-sofa-bennett-charcoal-prvw-vr~56117335?lid=41494284)

Great selection, but definitely yellow hands down. It will make the house look bigger. Another option could be a whitish cream with blue-green turquoise for the trimmings. Try something "out of the box". A nice white or red flowering magnolia tree in the left front yard will make the house look awesome.

Check the Sherwin Williams site and look at the color family for Tony Taupe - you can choose something 2-3 shades darker or look at SW's recommendations for coordinating colors: https://www.sherwin-williams.com/homeowners/color/find-and-explore-colors/paint-colors-by-family/SW7038-tony-taupe/#/7040/?s=coordinatingColors&p=PS0

First, pressure wash the brick to be sure it's the true color. The fence brick is a different color as it needs cleaning. Then, just color match the brick and paint the above wood the same color. It will expand the look of the house and not look "cut in half". Plant bouganvilla's in front of your trellis for a spot of color on the front of the house. Can you post a closer photo in the comment section?