I met DH through a club called SPICE. You have to pay to join and pay for events but, basically, it's a club to meet people who like doing the same thing as you. The person who owns the franchise in your area would organise things like theatre trips, walking weekends, ski trips, restaurant outings. I have been on party weekends, learned how to make chocolates, had a go at abseiling, been to a jazz night amongst other things. You join, pick the things you're interested in and you naturally meet people you have something in common with.
One thing to bear in mind is that means women and men. The people who didn't fit in were those who came specifically to find 'someone'. It'll happen if you are meeting people and are enjoying making new friends and if it doesn't happen you'd have made a new group of mates. We were often invited to parties outside SPICE by people we had met through SPICE and seven of our closest friends (male and female) we met through the club.
DH and I met through them, as friends first, as did six couples I know. Our DS's godfathers are friends we met through SPICE. One of them met his partner through them (different branch) and another met his wife OD but credits SPICE with giving him the courage to try OD.
They have a website SPICEuk. It'll give you more information. They do have very strict rules,one of which is they will end your membership if you pester someone, which I found comforting as you are meeting a lot of people, some of whom don't always realise they aren't God's gift to women (or men)! They also specify that they are not a single club (DH and I belonged to the group until well after DS was born and our friend and his partner are both still members as they enjoy the events) and are not a dating agency but people meet up because they are doing things they enjoy,which automatically gives you a common ground.
They do have preview nights which are free of charge (or were when we were members) and are normally in a pub. They have what we called Club Night at the same time so newbies could meet existing members who, in turn, could meet club friends.
Worth a look if they are in your area and you can afford it. I still look back fondly on my time with them.