Where to Find and Catch Tapu Bulu
From Pokemon Go Wiki
Tapu Bulu are found and captured in Nest and Habitat locations.
Nests
Tapu Bulu Nests are locations that consistently spawn Tapu Bulu.
Habitats
Tapu Bulu Habitats are spawn locations where Tapu Bulu is likely to be encountered, but not guaranteed the way a Nest is.
Additional Tips and Information
Best Nests
If you know a really good nest or any of the nests above is really good, list them here: