FEW (not many)
SEVERAL: Note "several" and "few" are the basically the same sign, but you can do the movement a little larger and spread out to indicate that while limited it isn't necessarily scarce.
Note: The meaning I'm expressing above with my facial expression is,
"There are more than just a few, but not that many."
SEVERAL (another example) Here is the sign "SEVERAL" using a
more casual facial expression indicating a bit more generous version of
"several" as in "more than a couple."
Note: The smaller and tighter the movement, the more scarce the referent.