I'm playing micro STTs too and i'm not playing for a long time either so this is just an opinion.
10BBs or less you do not have many options.
Unless it's on the bubble and somebody has a smaller stack, if nobody raises i'm pushing your range but with any Ax suited and probably not 22.
I'm tighter on calling, i'll probably call 55+ and A8s+, ATo+, KJs+, KQo (maybe QJs) because most of the time they shove at micros, it's an A (but not ragged) or a pair.
I would rather push myself instead of calling a shove