I have tried the homemade wire coil racks, the Sort-a-tool trays, the Craftsman foam drawer dividers, and the Ernst racks.
I love the Sort-a-tool trays which hold 28 wrenches, but only has labels for 24. I always end up modifying the trays. I have 3 of them and they are all full with 28 wrenches. For the larger wrenches, I have to cut the back wall out and some of the floor to get them to fit in the tray and in my drawers. But I am not sure how they will work for the longer wrenches. I would imagine that you could cut the sides and ends off the tray and just use the bottom to hold the wrenches in a smaller space. They really are the most space efficient way I have found.
The wire coils seemed to flimsy to me, but could imagine adding a a tray to the bottom and soddering the wire to it would strengthen it up some.
For my wrenches that don't work in the Sort-a-tool trays, I have converted to the Ernst rails. I was able to organize the complete 43 pc Craftsman raised panel 12 pt combo wrenches in a single 22 1/2"x16"x 2 3/4" drawer using both the Sort-a-tool tray and the Ernst Space Saver wrench rails and I am still able to tell at a glance if anything is missing.
What I like about the rails is that I can change the angle they are laid out in the drawers to increase or decrease the space between the wrenches. I have now bought 3 sets of the rails. The first set I bought had the magnet bottoms. I didn't think the magnets made enough difference to justify the almost $10 increase in price. The next 2 sets I ordered without the tape or magnets. I like the magnets betters even with the drawer liners. I bought a roll of 3/4" wide magnetic tape and added to them. It was still cheaper than buying them with the magnets.
The foam dividers spaced everything too far about for my liking. And the they hold the wrenches too tight. Yes I could adjust the angles, and open up the cut outs, but that is a lot of work and they are not as stable as the Ernst rails.
I haven't tried the assorted wrench racks, but I never liked the inability to adjust them and they always seemed too bulky for my needs.