Names like Vale?

I'm not pregnant yet, but somehow thinking about baby names distracts me from wanting to try for another baby earlier than planned!

My 15 month old's middle name is Vale. We love the nature connection, literary connection, and overall sound of it. We have some first names in mind for second babe, but are struggling with middle name options that are similar to Vale. Not similar in sound, but particularly in the areas of nature connection and being unique. We like Zephyr a lot, but it's tricky to pair with a lot of our first name options. Thanks for the help!