Expired domains - monetize?

Hello,

Long time lurker here. Doing another project I have run across a few expired domains with links from good sources. Moz rank 4~5 a few 7.

Are these worth anything to anyone? Or how to monetize them? I don't want to build a pbn.

Thanks

That metric is not enough on it's own. Look at it's referring domains. Are they relevant? Anaylse them and check they aren't super spammy. If you find a nice old one with a good backlink profile, build a site vaguely related to it's niche. We'd need to know the vague niches to suggest how you could monetise them

You could resell or set up websites to sell guest posts.