Looking for easy routes (5.5 or under) that get lots of sun; hoping for some warmer days for climbing this winter

Anything closer to the Uberfall gets more sun as it is angled more southward.

The Williams Wall in the 'nears is good although a bit of a hike but well worth it. Some of the best winter climbing I've done there.
Punch and Judy (5.5) is great...and then Akidlleativytoowouldn'tyou is a 5.7 but the crux which makes it so is at the top and can be avoided by traversing right to a large Pine tree that services P1 of Eowyn.
You can do Eowyn as well! (5.4)

Best warm wall without a walk is Jackie/Classic IMO, top rope Classic with directionals if you don't want to lead it. sheltered from the wind and a short walk........

On a sunny day, almost anything in the Trapps is fine above the tree line, except right-facing corners. You just have to suffer through those first 30/40 feet.