https://www.behindthename.com/

https://www.random.org/

https://www.timeanddate.com/ (for birthdate / age)

https://www.randomlists.com/

https://en.shindanmaker.com/

https://kprofiles.com/

https://www.pinterest.com/

https://www.notebook.ai/

https://www.fantasynamegenerators.com/

https://www.bestrandoms.com/

https://www.musicgenreslist.com/

https://www.thonky.com/ (for random colors)

https://www.uselessdaily.com/ (random facts for inspo)

https://inspirobot.me/

https://en.wikipedia.org/wiki/Main_Page (for example list of breeds : for pets)