Don’t waste your budget on link building if your site isn’t technically sound....

https://spark-wiki.win/index.php/Technical_SEO_Audit_Before_Outreach:_Is_It_Worth_the_Investment%3F

Don’t waste your budget on link building if your site isn’t technically sound. Before you start outreach, audit your crawlability, internal linking, and Core Web Vitals to ensure your new links actually move the needle