Be nice if this site included tops as a list
I haven't found a guide to them. Chris Townsend's book where he does all the Munros and Tops in a single outing is quite a good read, but isn't a guide as such. I tend to use hill-bagging.co.uk to get the list up and plot them out. The Harvey's wall map has them marked on too, so you can go crazy with map pins
I've enjoyed going back and doing tops - although there are some that are so close the the main summit that I just kick myself for not doing more the first time round