Last help question of the day for this novice
#1 was the hardest to find, I searched for sets with the Black Engine, Large, eventually I found that 70905 The Batmobile contained all the parts in the image, although the engine isn't visible.

#2 was a little easier, I searched by Dark Bluish Grey Mudguard. Of the four sets, 75877 Mercedes-AMG GT3 was the only match.

#3 I cross-referenced the yellow slopes and the dark grey trap door frame to find 76078 Hulk vs. Red Hulk

#4, #5, and #6 all appear to be parts of 75178 Jakku Quadjumper, although the lime brick 1 x 1 round appears to be a colour substitution.

#7 is the centre of 75971 Hanzo vs. Genji

As well as a tea cup from one of these sets

#8 has the front of Hulks car from 76078, and parts from these sets:
The torso from one of the models of 31058 Mighty Dinosaurs

Part of the carnivorous plant from 75904 Mystery Mansion

The Joker's hat from 76035 Jokerland

Catwoman's motorcycle wheel from 70902 Catwoman Catcycle Chase

One of the wings from 75129 Wookie Gunship

The ghost vacuum from 71242 Story Pack - Ghostbusters: Play the Complete Movie.

Some of the detailing on the front and underside from 70911 The Penguin Arctic Roller

The large black leg is from one of the many Star Wars buildable figures with black legs