I think it's important to have social connections. Small talk is often disnissed here on MN, but in my experience it's the way to find out you you'll gel with. Eg at work sometimes I get to chat to a college, but then we have to rush off. So it's the perfect opportunity to ask if they'd like to go for a coffee or something.
You get to know people via a bit of chat, and looking for things that interest you about each other. Taking an interest in the other person, while sharing a bit of your own stuff really oils the wheels of friendship.
I don't need 'ride or die' friends and I've never felt the needs to ring anybody at 3am over an emergency or a relationship breakup, which seems to be the definition of a good friend for some people.
Healthy friendships develop over time I think. I think it's nice to be able to have people you can have a good chat with, or equally company to see a film or a show. My parents were big 'club' and committee people, and always enjoyed the active social life that went with them. My father was a rotarian and my mum did inner wheel - friendship and service, or somesuch. I think active church membership or women's institute would offer the same. Even in her late 80s mother still goes out for lunches and coffee mornings with these groups. She's less inclined than I am to meet her friends individually- but the only group things I do currently are occasional work ones.
Tempted to look into WI myself now as it does mum no end of good having a social life into her older age. I recently accompanied one of her groups to see a musical, and we had a blast. There was a parade of walking trolleys and a couple of wheelchairs, and even one lady who was on 'day release' as she joked, from a care home. They don't tend to go in for deep and meaningful conversations- they are more the stiff upper lip variety, but they clearly enjoyed themselves and many of them have known each other for years. New ones have come along as others have shuffed off. I aspire to emulate a bit of that, alingside my individual connections.