"Best" low profile AC replacemet

[Gliddenwoods]

Morning,

I know a lot (too much) has already been written on replacing the very very loud AC systems but I have just one simple(?) question. This relates to my very limited "extra" ceiling height room above  my Oliver in my storage building.

What are the two "best" low (no higher than existing Oliver installed) profile quiet AC to replace the current beast on my 2022 Oliver? Why?

Thanks

(FYI: From Wisconsin and we don't use AC here. However, just returned from the 100 degree SW and rethinking the topic.)