Part of the goals exercise is not the goals in themselves but to let you reflect "where do I want to go" and start the discussion with your manager because maybe they have no idea: do you want to become a staff engineer? A tech lead? Can they assign you more of certain type of work / expose you more to the upper mgmt to build the awareness of your work and help you get promoted?
Are there things that you're working on alone but are too complex for 1 person and you would like to have more people involved? Can you use that as an opportunity to mentor younger people in the team and grow soft skills? Etc etc
Another thing is to validate things you'd like to do: maybe you'd like to more of X but you're not sure if you're senior enough / will it be well perceived if you do it / is it valuable investment of your time. If you let your manager know and he approves, you can devote time to it with clear conscience when you notice an opportunity.