A potentially impactful thing: someone competent runs as a candidate for the 2028 election on an AI notkilleveryoneism^[1] platform. Maybe even two people should run, one for the democratic primary, and one in the republican primary. While getting the nomination is rather unlikely, there could be lots of benefits even if you fail to gain the nomination (like other presidential candidates becoming sympathetic to AI notkilleveryoneism, or more popularity of AI notkilleveryoneism in the population, etc.)

On the other hand, attempting a presidential run can easily backfire.

A relevant previous example to this kind of approach is the 2020 campaign by Andrew Yang, which focussed on universal basic income (and downsides of automation). While the campaign attracted some attention, it seems like it didn't succeed in making UBI a popular policy among democrats.