I haven’t heard about Unto Others before but just watched one of their videos on YouTube. I don't really hear much similarity to Paradise Lost. Maybe both bands draw some inspiration from goth rock like Sisters of Mercy, but while the song I heard from Unto Others sounded a bit like a Halloween version of The Ramones (I don't mean that in a negative way at all, I actually liked the song), Paradise Lost are more rooted in doom metal. However, they have undergone many style changes in their long career and have even sounded like a bad-tempered version of Depeche Mode at times. In recent years, however, they have returned to their doom and death metal roots.
Anyway, thanks for the tip. I'll definitely listen to a few more songs from Unto Others.