If you are looking to send a partnership proposal to Yearn, the best way to do so is to reach out to the #pr-marketing channel on the Yearn Discord server. This channel is specifically for discussing potential partnerships and collaborations with Yearn, so it is the ideal place to start. You can post your proposal in the channel, and the team will review it and get back to you with their response. It is important to provide as much information as possible in your proposal, including your company details, the value you can bring to Yearn, and any other relevant information. This will help the team to better understand your proposal and make an informed decision.