Recommendations of tools for personal & family productivity/use cases

Hi All

Newbee in self hosting world(rather in linux/docker world). I have been running ARR suite on windows for many years and had been hosting kodi, plex etc. I am now looking to expand my selfhosting footprint with some mature apps which help general personal/family use cases besides media and entertainment. I want to get some recommendations/use cases from community to learn what people absolutely love to use.

I dont have any defined list yet but definitely considering Immich for photos, home assistant, next cloud or something slimilar for document hosting. and may be many more based on what recommendations I get or learn about new tools and their use case to solve a problem I never realised i have....:-)

Thx for sharning...