Sorry, DM, I totally misread your posts about your job. I don't know how I did that and I apologise.
I get that it must be very disconnecting working nights. Any chance of something else? I guess it helps with the childcare, though - that is such a big issue.
What about parents of your kids' friends? Or maybe sneak in an al-anon meeting to see if there are any like-minded people there?
I am focussing on the non-romantic relationships here, I know, but for a reason, as I explained above. I would suggest dating sites, but I am a bit dubious about many of those. I'm not sure it is necessarily the place for the vulnerable.