So for your key 3 requirements, low, slow, easy to fly there’s some of the above I wouldn’t recommend.
I wouldn’t recommend the mini 500, it fails on easy. I find it weathervanes strongly even in light winds which makes it really hard for hovering low at near ground level, say if you want to check out the fine details in buildings.
I’d rule out all helis apart from the KA-10M because none are easy to fly unless you turn assists on. The KA-10M is different because it has counter rotating main rotors, it is very stable and easy to fly. It can land anywhere, it floats on water, you can water ski with it effectively, same for snow.
For looking at cities and structures or wildlife the KA-10M is hands down my top pick, it’s completely open with amazing view, and very well priced.
I wouldn’t recommend the Top Rudder Solo either. Great view but frustratingly slow and doesn’t have any nav, not even a compass. Also it’s low speed handling is not docile, once it stalls it’s usually fatal, I’ve lost count how many times that thing has killed me.
For flying around slowly, but not too slowly, with a great view, some nav, the ability to land nearly anywhere, and most importantly docile handling when you’re too busy looking outside instead of at your ASI, my picks are the 710 STOL or the P42 Kitfox. Both are fantastic. The Kitfox has the full glass with autopilot (which I’ve almost never used) whereas the 710 has steam gauges and a nav unit but no autopilot. Kitfox is a tail dragging and the 710 is tricycle, both are easy to trim out for hands free flying.
The 710 wins right now because it’s on sale for two bucks, it also comes with float and ski versions.
The Kitfox is best if you want to navigate, has some of the best liveries in game, if you buy the full package it comes with some nice scenery. But most important of all, if you’re doing a long bush trip it comes with a tent for you to sleep in overnight. I find this so much more comfortable than sleeping in the upright seats!
Edited to remove incorrect claim that the 710 STOL had autopilot.