Hi,
I hope you'll check out my newest release: the vehicle crew set.
They should fit many settings and can be used as mechanics or other workers too. Find them on MyMiniFactory:
https://www.myminifactory.com/object/3d-print-vehicle-crew-235945. And with the summer sale now on you can get them, and all my other designs, at 40% off. Use the code
THRSUMMER22 at checkout.
The set comes with 174 heads which are also available separately here:
https://www.myminifactory.com/object/3d-print-heads-235946