https://civitai.com/models/102493/droid-style
Author's notes:
"Here is my first lora who has the ability to create droids (more droid than robot)
I have good results with dynamic prompts, here are the wildcards I use

head type

screen face
camera lens eyes
white light in the middle of face
flat head with light
sensor on the head
thin rectangular head
large oval head
asymmetrical lens eyes
flat circular head
flat dome head with large lens
smooth head with mask respirator
faceless white smooth head
face made of an industrial camera sensor
blue light on its smooth face
cubic head
triangular flat head
rectangular camera-shaped head
head in shoulders
luminous eyes
smooth head with a visor
circulating head with a camera and a sensor
smooth-headed with a breathing mouth and round eyes
thin and cylindrical head
domed head
narrow head
luminous camera, glowing eyes and antenna on the head
smooth black skull with red eyes
military camera head behind a transparent face
flat head with two antennae
thin jaw and two luminous eyes
head to chest

body robot

body in white armor
written serial number and sensor on the body
red piping on the body
cable on the body
tall thin slender body
tactical vest, arm and calf covered with khaki fabric
visible robotic skeleton
straight steel body
thin body
red marking on circular body
slender body
thin piston and cable arm, smooth bust with buttons
black body and smooth white chest
mechanical muscle
metal plate on its torso
mechanical part, piston, technical module in the back
metal plate, industrial joint
armored body, geometric angular surface, rivet, stubby
thin leg, machinery
strong body, broad shoulder, robust, reinforced plating, tactical equipment
machined steel body
reinforced body with smooth metal
welded plate, mechanical piston hand
large body with armored torso and thigh, mecha
slender arms and legs, angular body, backpack with antenna
smooth steel robot, blue marking, serial number, cylinder on the shoulders, thick forearm
armored shoulder pad, a piece of red armor, a reinforced hoop on his body
smooth shoulders, very long and thin legs, long arms
tubular arm, thin legs, ammunition strap on the body
cable and pipe joints, metal plating on arms and legs, slender legs
tactical vest, black body, armored beige metal arm and leg, mechanical soldier
industrial mechanical limb, factory yellow, blue light on the torso, stamped steel plate
epaulette and metal plate chest, markings on the torso
large thick armored plate on thighs and shoulders, rectangular limb
broad shoulder, plate armor on the limbs, reinforced limb
combat body with very wide shoulders, extremely armored, strong arms and legs, light on the torso

ps I'm French so I hope my translation of the terms I wanted to use are not too distorted"