I'm having trouble finding an accurate word for a group of people that look after each other based on a mutual kinship/ association. Let's say that X is currently looking for a job, so they decide to reach out to Y to help them based on that mutual kinship. There's a strong connection that makes Y help X, even if they don't know each other at all.
The word "Network" doesn't seem to convey the meaning I'm looking at.
Best Answer
The generic term for such a group is literally "kinship group" which Oxford defines as
Source: https://en.oxforddictionaries.com/definition/kinship_group (see "example sentences")
Specifically, the term clan seems to fit your meaning:
Source: https://en.oxforddictionaries.com/definition/clan
In addition,
Source: https://en.m.wikipedia.org/wiki/Kinship
In India we simply say "relatives" or "fellow-villagers" which means anyone related by kinship as in blood or marriage, or belonging to the same village/town/region. Even a remote relative or an unknown fellow-villager can have a claim on help and support in time of need, in communities that subscribe to that concept.
Example sentences that fit your context:
NOTE: The word "clan" originated in the Scottish Highlands but is now used universally to denote a kinship group, as demonstrated by the many example sentences at Oxford Dictionaries Dot Com.