I'd go with a warm greige or lightish brown, like SW Artefact. I'd paint the trim cream. Your house has good lines, but the dark trim and greenish yellow isn't going it any favors. Any gray that doesn't trend greige or brown will not go with your roof, which is a prominent feature of your facade.

Some off with your photo on my monitor. Looks like the colors have been intensified because your gray roof has burgundy undertones.

What is the material of your siding? Vinyl, aluminum, wood??? That will help determine the material to use. If it's wood and the current finish is no peeling off, then it might be that your siding has been color with an opaque stain. It's a better product for wood than paint.

I'd select a white that leans warm and remove that poorly designed railing from the front porch that really is not required.

I went with SW African grey. Came out beautiful

I would not remove the railing. You have two steps and 3 if you count the porch itself. I sure wouldnt want to be responsible for anyone steppng off that and falling and breaking bones, or worse. It definitely is needed and required and the style fits the house.

Yes. It is even higher on the back of the house, porch railings have to stay.

You might try SW dovetail. I'd do the trim in a warm cream. But if you like neutrals, Foothills might be a good choice. WIth a warm cream trim, like Summer white, it would look great.

I think the railings look fine, the chief problem being the dark trim. I would widen your front path. One way to do that is to add a border, so you don't have to remove the existing pavers, which do need a power wash.