The Icon A5 and DA62 are the unsung highlights for just cruising around and sightseeing. Simple to use, lovely to fly, great to look at.
My personal favorite is the King Air 350. Bit more complex, many more options, good range. It feels very “pro” but wont make you feel like flying a computer panel.
And of course the Beaver for that really “old school” feel of bush style flying.