How/where to leave Pylon?

Finalized my support roster (Illari, Juno, Kiriko), and need advice for better Healing Pylon placement. I know to try and keep moving it, so that it doesn't get broken, but what about for those extended team fights, when having it in a nearby spot is an absolute necessity?

I'll have a replay in an hour or two, so any pylon advice, or any advice at, would be greatly appreciated.

I just got a better chair, and I'm not used to it yet, so my gameplay is gonna take a bit of time to return to form.