Where to Find and Catch Tapu Lele
From Pokemon Go Wiki
Tapu Lele are found and captured in Nest and Habitat locations.
Nests
Tapu Lele Nests are locations that consistently spawn Tapu Lele.
Habitats
Tapu Lele Habitats are spawn locations where Tapu Lele 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: