Here are a few photos of some common (and not common:micro) anubias I have showing leaf sizes

I'll list ones I know, there are plenty I've not owned yet to get proepr size info on
Small to large:
micro
petite
narrow leaf.. gold
nana
coffeefolia
barterie
Broadleaf
Hastifolia
I owned others but lost them to rhizome rot several years ago and forget their sizes...
I've been told my gold/golden anubias is abnormal as most are the size of nana but mine is between nana and petite.. so I may have a hybrid (golden pollinated with a petite and made smaller offspring).
Check out the
anubias wiki to see some other anubias. Look at "Size in aquarium", its in cm but you can sue a converter on google "convert cm to inches".