Almost impossible to answer this correctly Rich, as our fungi friends seem to appear in just about every habitat you could think of.
I've recently been discovering most of my finds just by wandering around in local woodlands. (and the less well managed the wood, the better the fungi prospect from what I can see - old fallen logs/branches/leaf litter being prime areas for examination).
It doesn't seem to matter whether deciduous or conifer habitat, although that can obviously affect what species are around.
Steep wet banks seem to throw up many varieties, the micro-climates created in the undergrowth below dense brambles & nettles etc. are also very good. At this time of year, even just looking amongst the grass in fields should produce a good variety - particularly in grazed fields.
In fact, if you can persuade your family to walk slowly, in the traditional posture of fungi reverence (head down looking at what your next footstep might be about to tread on

) you should easily find a multitude of varieties.
Unfortunately, many of them will be nigh-on impossible to identify to species level, but that's all part of the fun. (Well That's what I keep trying to convince myself anyway

).
Happy hunting,
Regards,
Mike.