The speakers I've heard that best handle this are from PMC (TL design) and ATC (sealed box design). However, I should say that I've mainly tried standmounts, and it may be that floorstanders have different characteristics.
Back to the drawing board. I've had a nice extended home demo of the Larsens and have finally decided they are not for me so they are back in their boxes ready to go home and the PMC's are back in place for now. The Larsens were a lot of fun but ultimately not quite what i want and as i keep speakers for a long time (and am positively glacial in making a decision) i'll be taking my time choosing the next pair. The search continues....
I'm with Mike-B. Close to a wall go for Sealed Box / Infinite Baffle designs. All ported design principles (front, rear, bottom, open TL etc.) have design compromises that are exacerbated when placed close to a wall, even though the degree of compromise varies between principles, it's always there.
Unless a ported design is specifically designed for close to wall operation it will be significantly compromised when close to a wall; if it is specifically designed for close to wall operation it will be significantly compromised when in free space and get bad reviews, so almost no-one will now design a speaker that way.
PMCs work well close to a back wall, but not flat up against the wall, obviously. I've found them totally unfussy as far as placement is concerned. The Twenty or Twenty5 series.
Il second this i have twenty 5 24 PMC very close to a rear wall and they are very happy with their positioning