Where I am, a few hours below Sydney, they grow in broken down wood/mulch and have been abundant for the last few months.
I picked some great ones from the back of woolies car park where they laid mulch around trees in 2014 and that patch is still going strong!!!
a lot of the time you find plenty in urban environments from councils maintaining areas with already decomposing mulch.
another great spot for goldtops is the edge of fire trails in the bush/hills before the mountains, where each year they grade the roads and the years of this happening, have spread the spores all over the place! combine that with the broken down timber pushed aside each year and sunlight, it’s the perfect conditions.
the council actually go up each year to “destroy” these masses of mushrooms and in the process have inadvertently helped create better conditions than there would be if left alone. Thanks guys hahaha