Don't like unclean vocals but want to get into metal?
No problem. Here’s a small and incomplete list off the top of my head of bands you might like. A lot of these bands fall within Power Metal, Doom Metal, or Gothic Metal umbrellas.
Edit; please feel free to add more, vouch for, or contest any of the bands on this list.
Type O Negative (the album Bloody Kisses is 👌🏻)
Nine Inch Nails (highly recommend the album Pretty Hate Machine)
Primordial (VERY similar to Behemoth in aesthetic & over all sound, but vocals are less harsh)
A Pale Horse Named Death