The Pokemon films/OVAs/Specials do run concurrent to the series' but as side stories mostly. Still there are better times to watch these than others. The preferred method used by many is to watch a...
Commentaries will come later on..
basically anything with elements of fantasy, whether it be mythical creatures or nonexistent things.
No hentai, echii, or (explicit) nudity or cursing.
Here are some of the series I watched as a child
anime, ovas, and movies that I have finished in 2016