The names I use most often come from pages listing the top 1000 names in the US and UK. I figured that the readers would feel most at home having familiar names in the story. I copied a list and then I tick them off as I use them, trying to get a variation from story to story. I think I have used close to a hundred different names so far. For seedy persons or femme fatales I often pick combinations from the scene names on a page listing the 100 most popular US porn stars. So when authoring, for me it's usually not what name to pick, but rather scrolling down a list to see what names I haven't used for a while.
I'm writing on a story about three Swedish exchange students and for them I picked names with Swedish spelling, lika Ängla, Älva and Örjansdotter. Incidentally, there are 53 different Swedish female names beginning with the vowel Ö alone (that's not the same vowels as A and O by the way), so thinking of it, I could actually use different names with the letters å, ä and ö for all my characters forever, making them really stand out in the crowd, but I wonder what scenario the reader would imagine then, when finding such odd names of the characters

Gloup/glagla