re: San Antonio-any suggestions?

You can do everything in San Antonio in no time.
Unless you really immerse yourself I can't see spending more than a half day at the Alamo.
You can walk through the Alamo in an hour.

The River Walk is ok but again kind of touristy. They offer the boat rides in the river and they give you the history.

Geunther House is the Pioneer brand store, really good place to grab breakfast one morning. If you don't have a rental, it's a short cab ride from hotels on River Walk but you might have to uber it back.