The best replacement for mobs is mobs.

The best alternatives to mobs are rated as following:
★★★★★  mobs
★★★  herobrine
★  peaceful mobs
★  players

Your alternative for mobs is not listed? Suggest!
Speaking about mobs, one probably shouldn't forget about mods.

Other search terms related to mobs and their ratings are:
★★★★★ mods
You have in mind a companion for mobs and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of mobs in all years. Click on graph for more.
mobs
mobs
herobrine