Apricots are fine, if you cant mash them blend them instead.
Apricots have loads of vitamin C and vitamin A and also a little calcium too.
Nectarines and peaches are pretty similar- but when ripe you can mush these in your hand or with a fork much more easily if you don't have a blender.
Don't try and mush them up until they are very / overly ripe, the ripe fruit smells much better and is how they would most likely eat it in the wild.
Other fruits I have tried are pears, melon, mango, papaya, raspberries, plums
God knows who peels the mango's for them in the wild