Broken Links - Scaling the campaign

Hi all,
I am doing a broken links campaign in which i get a list of prospects from Ahrefs and send them an individual email that is specific about their
webpage with the broken link and my page that can potentially replace.

I am getting a fairly good conversion rate with this technique but it is taking a long time to email individually.

The emails are all the same except for the persons first name and the link to their broken page.

Is it possible using software like Lemlist or similar to have the email customized not just with the first name but also with the
link to their broken page?

The real question is why are the links broken?

If the domain is expired, you could just register it and then take all their backlinks.