https://www.behindthename.com/random/ [nationalities, mythology, ancient, fantasy etc, with "life story" physical attributes, birthplace/date etc]
Need a bunch of polish names, no problem....russian? change the nationality...lots of them to choose from.
https://www.fantasynamegenerators.com/ [lots of real/fictional names]
https://www.name-generator.org.uk/ [has character profiles/backstories, modern, so would take some tweaking to use] [also other categories]