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