@Novski suggested that we could use https://www.loomio.org/g/WencE2Du/b2gos as a decision making platform.
Loomio is decision-making software to assist groups with collaborative decision-making processes. It is a free software web application. Users initiate discussions and put up proposals. As discussions progress the group receives feedback on a proposal through an up-datable pie chart. More here : https://en.wikipedia.org/wiki/Loomio
What would you think about it?