One shots and long fics are fine. Basically, a fic with someone else (can be one or more than one) looking at Spuffy. I know of a few:

Kaleidoscope by Lizarel (or penny_lane_42)
"Can you tell me, is this love that I'm seeing?" One by one, the people in Buffy and Spike's lives try to add up the obvious.
Can be found on Elysian Fields.

Prism by Lizarel (again, or penny_lane_42)
Sometimes it takes an outsider's perspective to really see the truth of things. Other times...well, people do say that context is everything, right?
Prequel to Kaleidoscope.
Also on EF.

Meanwhile, on the fire escape... by coalitiongirl
Remember a year ago, when we knew nothing about Season Nine at all? When speculation was rampant and Angel and Faith wasn't a thing and all we had was the fire escape? Right. So, pretend that this was written back then. (*checks* In addition to Embers's first chapter, apparently. Happy anniversary to Embers! Let's not talk about how I haven't written anything lengthy since!)
No need for any knowledge of the comics for this one, though it ostensibly takes place a while after S8. Six drabbles, one not-exactly. Schmoop. Pointless, fluffy schmoop. =D
Found it on her LJ. I'm not sure if it's posted anywhere else.

Long Day's Journey by Anaross
Spike's return, seen through the eyes of Angel and his friends. Oh. And he's not allowed to see Buffy. Post Chosen. Spike/Buffy pairing.
Can be found on Just Rewards.



So... recs?

Voyeur by smellslikecorruption

http://dark-solace.org/elysian/viewstory.php?sid=3134

Oy, that's quite a blurb! But thank you for the rec! It's only on LJ- It's too short to be posted anywhere else. 

These are two of my favorites:
The Messenger by ya_lublyu_tebya.
http://www.fanfiction.net/s/3789595/1/

Inspired by 'The GoBetween' by LP Hartley. When Buffy and Spike seem to become friends after her resurrection, Dawn is overjoyed. But is there more to their relationship than meets the eye... Season 6, from Dawn's POV


Dare. by Isha-Rose.
http://www.sweet-temptation.net/viewstory.php?sid=310

They were about as different as two adolescents could be. One a bright, vivacious dancer, basking in the heat of the sun, as well as the warm and glittering promise of her own talented body. The other a dark, troubled musician who understood the world only through the notes of his own, private melody.

"A Brief History of Now" by Gwyneth Rhys. At AllAboutSpike or her website. Willow's perspective

Business as Usual by Lilachigh - Can be found at Bloodshedverse. My all time favorite non-cannon character - and quite a hoot. Don't miss it.