I have a group of four friends from school who are close, and we do a lot together (or did pre covid). We all have partners or husbands and I class most of them as friends too as I have known them so long and get on well, although I don't have their phone numbers and wouldn't meet up with them for a coffee or anything.
I then have three or so more friends who are also friends with this group but I'm not as close to them (I wouldn't necessarily meet up with them alone).
I then have a group of five friends from university who I don't see very often but we speak and try and meet up as a group once a year or so (again pre covid!). Sometimes this includes the partners/husbands too so the group is bigger, but I wouldn't class the partners as my own proper friends as I don't know them well enough.
I have two other friends from university from a different group who I don't see often at all any more since DC, but they'd always be invited to things like weddings, big occasions. We check in every now and then.
I also have a few friends from workplaces (old and current) and then various people I've "picked up" through my DC. I didn't do NCT but I made a friend at a pregnancy class who I really clicked with and five years on we still meet up fairly regularly. Also a friend of a friend who I get on well with and has DC similar age to mine, so we catch up with the DC sometimes. Also a particularly good friend from an old workplace.
I count myself as lucky. I don't make loads of new friends often but I have several really good, loyal, amazing friends.