Alabaster would look good with Repose Gray. It will be a very subtle difference. I, personally, think your charming house could do with more contrast, not less. I'm a fan of blue, so I'd go with a bluish gray, like Upward or a darker color like Daphne. I would get samples of your chosen colors and see if you like the contrast, or if it's lost.

We painted a lot of samples on the back of our garage to decide.

Some visual with Accessible beige

Help! I still haven’t picked colors! Need to do so before Saturday. Here’s the side of our house. What are everyone’s thoughts on painting the chimney and

Front outshoot with smaller point a lighter or darker grey?

I would go a bit darker than the gray you have. Even a gray blue would be nice. Leave the trim the white you have. Alabaster will look a bit dirty white on your house. What you have now is a good white.

Cute house! I think you need landscaping more than a new house color. Does that sidewalk really just end in the middle of the yard? And I think your bushes are a little too tall. There are some really talented photoshopped on here who can probably give you some visuals.