Aside from your loved ones? Although I've included mine as I couldn't not!
As a twenty something, my life revolved around socialising and clubs etc. I was rarely on my own and craved company as I thought it was what I needed at all times in case I felt lonely. I remember my aunt back in the 80s saying that people were never content and I remember thinking 'i'll never be like that I want more!'
I bought a flat in my mind 20s (long time ago) and realised that I like being on my own and actually need solitude sometimes. Fast forward to marriage and children and that all went by the by and now, as I reach my late 50s (which, imo is a great time of life) I need much less than I thought I would:
DS and DD to be safe and happy, DH around (when he's not getting on my nerves 😂), my friends who I love from my bones and couldn't do without, my sister (my best friend) and her family, my beautiful dog, a good book, my phone and a nice wine. I'm automatically including our very average but lovely home in all this and it's made me realise that I need much less to be content than I ever thought I would when I was younger. Contentment is so underrated and feels wonderful.
I'm aware that this sounds very self absorbed and I don't mean it to. I've been through so many bereavements, cancer, my own family's life limiting conditions etc., but I think I've just realised that, compared to many, I'm very lucky and I'm truly grateful.