thats a good question! hmm... (∩⌣̀_⌣́)

this is a little hard especially considering the fact that wteis and yztrs dynamics are definitely going to always be touched upon in some way for basically every fine story, but i will try to answer with best of my ability!

atlantis is the first that comes to mind, as it focuses more on the relationship and dynamic between wataru and tori... yuzuru doesnt feel quite as involved with tori as eichi and wataru were. he was just there for some fun bits and serious bits. of course, there will be moments, but yztr doesnt seem to be the main focus for atlantis! you can argue that there are the wtei bits, but i dunno... i dont think theyre much of the focus either. i believe their attention and focus is mostly on tori throughout the entire story!

i do believe that magnolia is more centered around tori and eichi? its been awhile since ive read it, but even though yuzuru shares a matching 5☆ card with him, most of it is him helping tori with the whole gift thing. eichi got yuzuru, yuzuru got wataru, wataru got tori, and tori got eichi!

flowerfes is. hm. yuzuru and tori are properly introduced to wataru for the first time in this story. eichi isnt exactly present within the story, however... yztr isnt exactly the main focus, i think. theyre together a lot, of course, but thats because of yuzurus role as toris butler, so its a little hard to avoid such circumstances;; still an extremely important story, though. super duper important.

summer vacation is also really good, i think! its the story where we get the most out of yzei. lol. yuzuru in general just seems to be the main focus for this one (that or im just a yuzuruP with yuzuru tunnel vision) and undead is there, too, of course, but yknow...

honestly. there are definitely fine stories that do sorta center around wtei (i cant think of an example. probably ep:link?) and yztr (like primavera or toyland), but i think theyre all still pretty valuable and worth the read. 😓 its a bit difficult for me to recommend that many stories that "arent centered around wtei or yztr" especially since i first and foremost value yuzurus relationship with every single member, so i take every single crumb of interaction that i can get and run with it without realizing just how little of it there actually was!

theres ghostic, maybe... and tempest, too. i think tempest is really good for everyone and Not just wtei. its really good for yuzuru (biased). wtei do have two or three chapters dedicated to them speaking one-on-one with each other but yuzuru is a key element to what keeps their conversation going. they talk about yuzuru a lot. the synopsis for tempest even mentions yuzuru!

i hope this helps a little. if someone wants to chip in and add their two cents to this, then thatd be fine, too!