Ranked-choice voting could be used
Troll farms / armies could be identified, removed, and/or regulated
Social media could have better content moderation / coding, particularly in developing countries
Civics education could be a part of school curriculums
Online public spaces could be created
Facilitated group discussions could create civil discourse
Algorithms could reduce rather than increase filter bubbles and division
Tech companies could remove hate speech and wildly untrue content
Movies / television could be historically accurate
Bots could be kicked off social media
Group meals could ease political polarization
Citizens could be encouraged to take part in a year of public service
Different amounts of votes could be bought in elections