/tp @e[name="<Mob Name>"] ~ ~ ~ facing entity @p eyes
/tp @e[type="<Mob Type>"] ~ ~ ~ facing entity @p eyes
And put that in a repeating command block on always active.
Now you got a mob that's looking at you 24/7 until you disable that repeating command block
*I literally was going to ask how to do the above, when I accidentally figured out how by typing random stuff.*