The best solution would be finding some kind of self-selection or filtering mechanism (eg: meetups, tech incubators, open source projects, maker fairs, maker spaces) that selects for people interested in building something interesting.

If you're looking online, Hackaday (https://hackaday.com/) has an excellent variety of people working on DIY projects.

Someone recently started a Hacker News Learns discourse group which you might be interested in joining: https://discord.gg/WyRBDGgeCG

There seem to be several highly motivated people there working on various interesting projects. You might find some other interesting ideas in this thread as well: https://news.ycombinator.com/item?id=32354994