you need to match the os to the specs of your netbook.
when i had my netbook i ran elementary os
https://elementary.io/
just put 0 where it says custom & download.
if i remember right, my netbook had 2gb ram & a 1.6ghz cpu.
there are other linux os's with less minimum requirements. you can have a look through distrowatch.
https://distrowatch.com/