Not UK rap (Scxrlxrd is) but i've been into some new rap, pretty hardcore shit for the most part IMO, just to name a few:

Blvc Svnd
Ghostmane
Pouya
$uicideboys
Gizmo
Swerzie
Bill Saber
Fukkit
Zotiyac
Scxrlxrd

Really dig these guys right now. Ghostmane is coming out with a new EP soon (a joint project with Getter)

I'll post my top 5 rn.

Saber's got some weird ass videos. Really dig this song right now, sounds great in my car lmao.

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Blvc Svnd & Gizmo are prob my favs of them all right now, idk why his voice just gets to me.

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Swerzie just kills this IMO.

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I love pretty much everything Ghostmane does. Innovative rap IMO.

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This guy is actually from the UK and I really dig him.

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Since you mentioned Ghostmane, cant not first say: RIP lil peep



I pretty much mess with everyone you just listed there - Blvc Svnd, Ghostmane, Pouya & $uicideboys I been into since about 2014. Gizmo I haven't heard much of - I'm gunna go check him out - thx for that!

On the same tip as Suicide/Ghostmane:

GVLLOW


Killstation


On the more Wavy yung Lean/Vapor-Trap side of things:

Tah Shai