Parmandur
Book-Friend
Yup, like @Veltharis ap Rylix says, there is a low level adventure in Rime of the Frost Maideb which centers on them, and they have a couple stst blocks in the Bestiary along with a couple random encounters I believe.Are there Verbeegs in 5e? I don't recall seeing them in any of the various monster books.
Wouldn't be surprised to see them reprinted in this book, same as some random dragons in Fizban.