In reply to mypyrex:
There are plenty, most are more just shoulders than actual peaks really..
Does the tour take in Le Brevent? I never knew that the race cuts it out.. I thought it ran underneath?
Tete de ferret is a nice view point..
I think all the peaks it passes are fairly untechnical. I wouldn't plan too much, have a map and see how you feel during each day, they are just spurs of the trail so I've only hiked Courmayer to Cham so did a few then, but just the obvious spurs off the main path.. then did the race but that's not strictly just the TMB.