tag association & offices that offer volunteering opportunuities

hello dear all

how to tag associations and offices that offer volunteering opportuniuties

i only have found these few data - and information

Tag:office=association
An office of a non-profit organisation, society, e.g. student, sport, consumer, automobile, bike association, etc. Edit or translate this description.
Rendering in openstreetmap-carto

An office of a non-profit organisation, society, e.g. student, sport, consumer, automobile, bike association, etc.
Additional tags

https://wiki.openstreetmap.org/wiki/Tag:office=association

The following are non-established extensions, but a few can be observed on TagInfo already:

**btw: **see also - very **very interesting: **https://europa.eu/youth/volunteering/organisations_en#open