It’s weird as I have very few people on my contacts list, I am pretty lousy in keeping in contact with people once I have left a corp (in fact I am like that in real life too) and whilst I have crossed paths with many hundreds of people from within the corps I have been in I wouldn’t say I have close relationships with any of them.
I may look through my previous corps to see which names I recognise and maybe try to start up conversation again. I’ve just got into a habit of writing notes under the characters names I have in my contacts, it maybe fun to revisit these people from the past.