You can get veeery creative and 'smart' with link building techniques. My recommendation is that you choose a strategy so you can create a system around that, and it’ll be semi automated. If not you'll be putting too many resources into it and it could not work.
Also, always treat these strategies and minimun viable actions, meaning test and anlyze the results and if it doesn't work, chose another link building strategy quickly.
https://ahrefs.com/broken-link-checker
https://ahrefs.com/
You can get veeery creative and 'smart' with link building techniques. My recommendation is that you choose a strategy so you can create a system around that, and it’ll be semi automated. If not you'll be putting too many resources into it and it could not work.
Also, always treat these strategies and minimun viable actions, meaning test and anlyze the results and if it doesn't work, chose another link building strategy quickly.