Speaker placement in a room with the best performance if it is close to a wall?

Though you list floorstanders, I would consider a bookshelf speaker like the Vandersteen VLR. They are made to be placed near corners. Don't let the small size fool you, they can really move air. With the money you haven't spent on the Wilson's, or Magico, you can get a Sub 3 or two and really have a very respectable system.

What are you using for preamp and amp?

Bob

Magico in particular need a lot of side space.  In a big room they throw a wide, stable sound stage, but cramp them at all and it all collapses.

Of course these issues can be tamed if you can place big thick absorbers around them.

I have the same problem, I also suggest “bookshelves” size speakers and a sub(s), which is the way I went. Also, either sealed cabinets or ones with the port in the front. 

OP. What constitutes not a large distance from the wall? Specifically, what are the dimensions of the room length and width wise? For absolute clarity - what is the distance from the front wall - location of your speakers to the back wall - situation of your listening chair? All high resolution speakers' performance will be impacted by placement, so it helps to be clear about the measurements we are dealing with.