Reflection nebular are beautiful. Often the regions are filled with young and hot blue stars (yes, you can quote me on that) the light up the dust and particulates around them. Blue, muddled red and oranges yellow are also not uncommon. Sometimes there are large objects that feature both reflection and emissive properties as well.
Messier M78 and my first APOD
Rho Ophiuchi Cloud Complex
The Running Man
Messier 45
Bernard’s Merope Nebula