Ghost- If you like black metal and Alcest, you should really give Agalloch a listen.
I guess I'm late to the party but I
have to second this. Marrow of the Spirit is the best, most complete, ambitious and successful metal album of the last 20 years, in my clearly-not-humble opinion.
Also, post-rock/post-metal is a must for pipe smoking. When some songs carry on as long as the pipe does, that's a good thing. Mono, Pelican, Isis, Yndi Halda, Explosions in the Sky, Russian Circles, Godspeed You! Black Emperor etc.