Confluence Team Decision supports following decision types
A proposal is a tool for seeking collective agreement about a statement or course of action.
Proposal is available in Lite version for free
A check is a tool with many possible uses but only 2 responses YES or NO
Use a poll to measure popularity or offer a choice.
Dot voting is a way to prioritise a list of options.
Score polls allow people to express their degree of preference for each option.
Use a time poll to find when people are available to meet.
Ranked choice is a voting method which allows each voter to respond with their preferences in order.