Aerate after chilling and before pitching yeast.
Avoid aerating when the wort is still hot--there's a lot of evidence that hotside aeration (HSA) isn't a major problem unless you really overdo it, but there's no real reason to go out of your way to aerate hot wort either.
On deck: Little Bo Pils, Bretta Off Dead (Brett pale)
Secondary: Oude Bruin, Red Sky at Morning (Sour brown ale)
On tap: Saison Duphunk (sour), Amarillo Slim (IPA), Earl White (ginger/bergamot wit)
Bottled: Number 8 (Belgian Strong Dark Ale), Eternale (Barleywine), Ancho Villa (Ancho/pasilla/chocolate/cinnamon RIS), Oak smoked porter (1/2 maple bourbon oaked, 1/2 apple brandy oaked)