Aromatic Mist
Sensuble
It doesn't grind my gears that people say it might possibly be tropical but people acting like it was already confirmed that it is tropical with no other options even possible, ignoring the fact that a tropical island region would be kind of redundant straight after a Hoen remake.
If Hoenn's a set of tropical islands, The United Kingdom has monsoons.
It has one main island, very small ones surrounding it, and at best it's a hot climate, not full out tropical. People saying Hoenn's a set of tropical islands may as well say Sinnoh is the Arctic.