Items used:

The guy (in foreground):

Genesis 2 Male (Daz3D)
Eldritch seeker (Daz3D)
Boris Hair for Genesis 2 Male(s) (Daz3D)
Pose: Basic G2M pose

Firefighters:

Clothing: Petege
Running pose: Basic pose
On ladder pose: Petege
With hose pose: Petege

Fire engine (1915 Dennis) includes ladder: Launok and Petege (Blender)

Woman in window:

Genesis 2 Female (Daz3D)
Clothing: Wendy (Wilmap's Digital Creations)
Pose: Petege
Estal hair (Daz3D)

Flames: Primitives with photo from Unsplash
Mask image for it by Petege

Water: SY Squirts Splats and Splashes Iray by Sickleyield (Daz3D)

Hoses: Versatile-Tentacle-Figure by Tempest (ShareCG)

Le Village bundle by Faveral (Daz3D)

Postwork, composition and lighting done with help from Petege

Daz Studio Render