Whatever you come up with will be a remix of things you've experienced in life, from actual things you've done to conversations you've had. If you want a breadt

Whatever you come up with will be a remix of things you've experienced in life, from actual things you've done to conversations you've had. If you want a breadth of ideas then having a breadth of experiences is one solution; talk to different people, visit different places, read different books and even change how you experience those (try an audiobook or speed reading if you’re used to reading a book at a leisurely pace). Once this starts collating in your head you can brainstorm ideas on your own or in a group. One caveat is that ideas in this early stage should not be filtered: think of something, write it down, repeat. I’ve seen far too many brainstorm and public discussions drum up ho-hum solutions to problems because taboos and political correctness got in the way of interesting ideas. Such ideas may be stupid or even offensive but they can be a catalyst for much better solutions.