The single best way to find investors is: Get involved with mentor communities. If there's an area of specialty where you can contribute yourself, that's even better, but seeking mentorship will both make you more investor-ready and will also help you find the investors. I do mentorship for companies raising all the way from a $50K pre-seed up to $50MM Series B rounds. All of them understand that they still need mentor help.
Many many investors do at least some level of mentorship, in part because it helps them find the best deals. Not a coincidence that the startups seeking mentorship are typically the most investable ones. This is because they understand they don't have all the answers yet.
tl;dr Want to meet investors? Get into mentoring communities, both receiving mentorship and (if possible) giving mentorship yourself.
If you aren't sure which mentorship communities to begin with (in your area or virtually), comment and let's discuss.