Here’s a way to filter through proposals quickly, save yourself a lot of time and find someone easy to work with:
Place a sentence at the end of your project description that you expect the work proposal will answer.
Then disregard any proposal that does not answer it or contains a lot of information and portfolio links that is not relevant to your project.
A simple example is “In your proposal please explain how your previous work experience will help in completing this job”.
You’re looking for people who have clearly read and understood what you are looking for.
All things being similar, communication will be a determining factor in how smoothly your project goes.
Including a little “ask” like this allows you to weed out automated and generic proposals and find the diamonds in the rough.