From the picture it appears you're using Cd100 rail track. In that case I would suggest using Peco SL-95 (RH) and SL-96 (LH) Medium switches. They are curved through the diverging track, similar to an Atlas "Snap-Switch", but with roughly a 36" radius (914mm) rather than 18". This should handle any of the locos you mentioned.
Using RR-Track to lay out a 10 track yard gives a switch ladder about 18" wide by 7' long vs Atlas Super #6 switches that take a space 20" wide by 9' long. The 2' difference in length translates into space for slightly longer yard tracks, giving more yard capacity, using the Peco Medium switches.
If you have locos you think even the 36" radius of the SL-95/96 Peco switches might not be large enough for, the SL-88/89 Peco switches have a 60" radius (1524mm) curve through the switch.
Using them gives a 10 track switch ladder that's 22" wide by 8-1/2' long, which is still a bit better than the Atlas Super #6 switches.
Len
Using RR-Track to lay out a 10 track yard gives a switch ladder about 18" wide by 7' long vs Atlas Super #6 switches that take a space 20" wide by 9' long. The 2' difference in length translates into space for slightly longer yard tracks, giving more yard capacity, using the Peco Medium switches.
If you have locos you think even the 36" radius of the SL-95/96 Peco switches might not be large enough for, the SL-88/89 Peco switches have a 60" radius (1524mm) curve through the switch.
Using them gives a 10 track switch ladder that's 22" wide by 8-1/2' long, which is still a bit better than the Atlas Super #6 switches.
Len