Any small monitors that dont sound thin and bright

I assume you mean the Spendor S3/5? Are you referring to their new price or used ($600) price?
There are many speakers that will sound more "transparent" than the Spendors, especially at lower volumes, where the inefficiency of the S3/5 makes it tough to drive. There are a lot of small speakers that are cheaper, more efficient and will sound more dynamic than the Spendors. Few will image as well and probably none will have their midrange richness. B&W DM 601 and Monitor Audio 2.5's are good examples of what I am trying to say. The Spendors are somewhat euphonically colored and are not for everyone, but to get this type of sound with the level of resolution offered is tough to find at even higher prices. Good luck and please let us know what you end up with.

check out the Totem Model 1's and the Totem Arro's. Highly rated, great sounding small speakers.

Axioms really are that good. Very cheap, especially used and quite rich in sound.

Check out Spendor (any of their speakers are not bright), Dynaudio 1.3mkII (Carefully position closer to a rear wall to reinforce a bit of the bass), Meadowlark Swift is a great rec. Amazing sound out of a small package and the bass is VERY impressive. Actually some of the best low end I have ever heard from a small speaker.

I would caution the PSB Stratus Mini's just because they need so much power to sound right. I owned them for a while, but didn't have any luck at all. Perhaps it was the wrong amplifier choice on my part.