The answers below contain advice and links to resources on how you can help humanity navigate existential risk from AI. They branch out depending on your preferences, background, and situation.

Our general advice is:

Get in touch with others who are interested in AI safety. You could join a community related to AI safety (filter for “In-person” to find local groups) or a training program — or as a default, the AI Alignment Slack.
Start reading about parts of the issue that you find interesting. For example, you could look up concepts on this site and follow links to resources.

More specific advice will depend on whether you’re looking to make AI safety a major focus, or whether you’re looking for ways to help that don’t require that level of commitment. And before deciding to take big steps to contribute, consider whether you’ve “put your own oxygen mask on first”: are you in a good enough state in terms of finances, psychology, and health?

AISafety.com also has some quick suggestions if you’re specifically interested in volunteering or donating money.

....link_svg__st0{opacity:.6;enable-background:new}.link_svg__st1{fill:gray}

....link_svg__st0{opacity:.6;enable-background:new}.link_svg__st1{fill:gray}

....link_svg__st0{opacity:.6;enable-background:new}.link_svg__st1{fill:gray}

....link_svg__st0{opacity:.6;enable-background:new}.link_svg__st1{fill:gray}

....link_svg__st0{opacity:.6;enable-background:new}.link_svg__st1{fill:gray}