Equivalent yarn

I’ve just found a pattern for Lister-lee kaftan yarn. Can someone let me know what an equivalent yarn would be?

I finally found it. It looks like it’s worsted weight so you can usually switch to another worsted/aran and be fine. What are you making?

Thank you - so an equivalent would be an Aran weight wool?

Aran or worsted weight is as close as I can get. They don’t list a gauge/tension info so it’s hard to come closer.