Event chase event

I am trying to get events to chase after another event and properly collide with it.
Example: "Event A" moves randomly, "Event B" moves towards "Event A" . I need Event B with proper path-finding to go around stuff.

I need Event B to collide with Event A to trigger a plugin for event activation on event touching.
I tried Yanfly "move route core" 'move to event' but that doesn't allow for event collision properly. (Event B would move to Event A but stop next to it and not collide, (can't tac on a move forward because 'move to event' doesnt end until it occupy the same grid coordinate)) (Setting event B with through on stops on collision touch activation.)