Well just going by vibes:
Henford-on-Bagley
Britechester
Brindleton Bay
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Windenburg
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Forgotten Hollow
Moonwood Mill
Granite Falls
Glimmerbrook
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Willow Creek
Magnolia Promenade
Newcrest
Evergreen Harbor
(kinda hard to place but like somewhere close to foundry cove as that is my only other ugly suburban houses area)
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Mt.Komorebi
on its own isn't really linked anywhere but i feel its closer to san myshuno newcrest willow creek area because the cherry blossom trees
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San Myshuno
joins every possible area on map as
"the city"
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Oasis Springs
StrangerVille
Del Sol Valley
(del sol being closer to the expensive properties and strangerville closer to cheap desert and community lots)
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Tartosa also kinda fits between mediterranean and beach somewhere
but idk if its particularily close anywhere
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Selvadorada
Sulani
as in if you walk deep enough in the sulani jungles you will eventually hit selvadorada
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aand then there is space =
Magic Realm
Sixam
Batuu
although aliens love oasis springs area and therefore you are more likely to interact with sixam and batuu from there
and magic realm is closer to glimmerbrook via portals but also like sixam in actual location