Here are some links to resources on Approval Voting and other alternatives to Choose-one Plurality methods
The Center for Election Science
Approval Voting – Wikipedia
Northwestern University, Kellogg School of Management
Scorevoting.net – Approval
Graphical comparison AV & PV, from Belarus (excellent)
Plurality voting system – Wikipedia
Liberty Forum 2019 – Unsplit the Vote and Approval Voting
Score Voting & Range Voting
Instant-runoff voting (IRV) – Wikipedia
Single Transferable Vote
Voters naturally want to choose more than one.
Colorado’s newest party is seeking citizens of the state to register to vote as Approval Voting Party members.
The Approval Voting Party has been established in Colorado. On October 1st 2019 over one-thousand Colorado voters have registered as AVP which was founded in late 2018.
The second statewide convention will be held in Denver on March 1st 2020.