Try this on Bandcamp - Black Metal Rainbows
130 tracks and name your price . Bound to be something interesting. I’m still working my way through it!

Black Metal Rainbows

Deafheaven & Wiegedood are my easy access go to.

Black Metal Promotion on youtube is worth checking out; full album streams. I've found lots of stuff that I wouldn't of heard otherwise there,

The Black Satans.

Dragged into Sunlight.
Wolves In The Throne Room.
Der Weg Einer Freiheit.

https://www.screwfix.com/p/hammerite-smooth-smooth-metal-paint-black-750ml/44048?kpid=44048&ds_rl=1243321&ds_rl=1241687&ds_rl=1245250&ds_rl=1245250&gclid=CjwKCAjwgqejBhBAEiwAuWHioMV31oAxDGxwi1Oc_5cDrwg0NrSClxZPsjasbbPzs4cGRTxhVuNMShoCRxUQAvD_BwE&gclsrc=aw.ds

Had to be done…………

White Ward : False Light. Released last year and is awesome.

It was recommended by Banger TV. I follow their YouTube and their recommendations are spot on.

Spectral Wound are one of the newer black metal bands getting a lot of plays around these parts of late.

Not sure about Black metal but if perhaps you want something lighter, then how about some Light Metal

Dark Throne - A blaze in a Northern Sky.

Judas Iscariot. Eternal Bliss, Eternal Death in particular.

Blut Aus Nord
Oranssi Pazuzu
Emperor

Satyricon.

Maybe not all black metal, some are sort of Scandinavia Black Folk, but all pretty heavy:

Apocalyptica

Bathory

Black Moth

Eluveitie

GOJIRA

Gospelheim

The Hu

Myrkur

Obsidious

Orkan

Pigs Pigs Pigs Pigs Pigs Pigs Pigs

Rammstein

Rotting Christ

Wardruna

Mastodon

Opeth

Mastodon is pushing it a bit, they were quite stoner with a heavy leaning and a lot of tech thrown in but last I listened to them they were pushing dad rock pretty hard.

How far into the national socialist black metal world are you prepared to go? I'd suggest not very far.