"Pro-posers" is a term that describes people who put forward proposals, ideas or suggestions. There are many other words that can be used to describe individuals who do this. One example is "advocate," which refers to a person who publicly supports and argues for a particular idea or cause. Another synonym is "promoter," which is someone who actively encourages or advances a specific plan or concept. "Champion" is another term that describes someone who actively promotes and defends an idea or proposal. Finally, "architect" can be a synonym for "pro-poser," as it denotes someone who designs and devises plans and proposals for various projects.