Need to re-hang pictures on a staircase wall: nail holes enlarged!

by Louise
It's wallpapered, so no Command hooks. Could use a drywall anchor but that could make the hole bigger instead of minimizing it. If I fill the hole, sand and insert a new nail, what material should I use?
Wish the wall were painted rather than papered but this is what we've got in our 1870 New England home. The nail holes are too enlarged to hang pictures from with nails. Command hooks not an option because of the wallpaper. How to deal with this?
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