Doi Angkhang about 2 hours drive North of Chiang Mai.
At Ban Luang Resort there is a small waterfall that normally holds White-capped Redstart, Rufous-bellied Niltava and White-tailed Robin. The owner feed the birds worms so whatever is around shows up at close range.
Behind the restaurant inside the Royal Project there often are Thrushes to be found but varies year to year. Dark-sided Thrush, Black-breasted Thrush, Scaly Thrush, Eye-browed Thrush, Grey-sided Thrush, White-winged Blackbird, Blue Whistling Thrush all have shown well.
A little up the hill from the restaurant there is a small power station. In there is a good spot for Hill Blue Flycatcher, Silver-eared Mesias, Black-breasted Thrush and White-tailed Robin.
You can of course walk around and shot a lot more birds on the go. These are only from stake outs.