I don't know how to describe it....but I'm looking for a yaoi that have the kind of "empty hole" sort of feeling. It lacks action and motivation. The characters sway according to the situation, not the other way around. and it shows a lot of scenery. There is no real conflict as a plot line and characters do not show any strong emotion. It gives a bit of a "fuzzy feeling"

For example:
So Serious
Anata no Tame nara doko Made mo

I don't know if I'm understanding you correctly, but like a mundane slice-of-life thing?

Something like Kinou Nani Tabeta? ??

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Obsession is a drop of water in the desert- crave it, savor it, remember it. ~Unknown

Tadayoedo Shizumazu, Saredo Naki mo Sezu Idk if it's to your taste, but this one gives me a very calm feeling.
Doushitemo Furetakunai The same goes for this one, same mangaka.
Kare no Barairo no Jinsei This one kinda does. You should read the prequel first if you're interested though.
Antique Bakery and the dj? Idk

Have you tried doing a Genre Search with the category tag "Mono no aware" with either yaoi or shounen-ai?