Hey @kinjal vora +1 to everything @Rohit has mentioned.
1. Leads collected per content piece
2. Organic traffic
These should be the most important metrics that you track wrt to your content. However, both of these are good metrics when you have a dedicated SEO team and a growth team that is working consistently on improving these metrics. While content plays a huge role in increasing these numbers, they're not standalone. The metrics have to differ for content writers, content marketers, designers, SEO executives, growth marketers, and anyone else in your team. One thing we've seen as being helpful is dissecting marketing efforts into sprints. If we're talking about individual performance review and goal setting, then it should be a conversation with the person itself as well and aligning their role with business goals.
I'd be happy to connect and discuss this in detail. It's a little too diverse and has to take into account for personal career growth metrics as well.
Thanks for tagging me @Priyanka Desai