I have a few.
When I graduated I got an interview for a job in Florida but the interview was in London. Another girl was going for an interview on the same day, for the same company, but a different position. She looked really familiar. Turns out we'd met when we were 11 and both sat an entrance exam for the same school. Neither of us went to that school but we were clearly meant to meet as we both got the job. We're still friends.
Another is that my MIL was born on the 7th of the month. My SIL had a miscarriage on MILs birthday, then her first four grandchildren all arrived on the 7th day of different months (my first two and my SILs first two). The following two (our two 3rd borns) arrived on the 14th and my last was born on the 21st.
About 4 years ago I mentioned to my mum that it was sad I'd lost touch with a girl called Claire from school. The next day my mum got on a bus, the woman sitting next to her said "excuse me are you Bundao's mum? I'm Claire from school". They exchanged numbers and I got back in touch with Claire.
Recently I got off a flight in Brazil where I live but really far from my home town and I saw a man in the airport who looked really familiar, he looked at me like he knew me too, he came over and said "Sophia right?" I said that's not my name and we couldn't place each other, he was from Argentina and I'm English. He had never been to England and only to Brazil on holiday a couple of times, I have been to Argentina only once so there's no way we actually knew each other but yet we both felt like we did. It was spooky.
Finally at uni I had a flatmate who really reminded me of a girl I went to primary school with. The girl had a really unusual name. I said "You remind me of X who I went to school with" she said "I know x" turns out x was best friends with an old primary school friend of my flatmates.