Just a tip. You can expand the range of civilian figures a bit by using some of the 1/50 plastic architectural figures you find in art shops. As these are properly scaled, ie tall and slender, you do need to carry out a little surgery, trimming a millimetre or two just above the knee to get the to match your typical gaming figure. Female figures in skirts are the easiest, as it gives you a natural line to cut and the skirt naturally disguises your surgery.
The detail can be a little soft but often they have poses you won’t find in wargaming minis.
In similar vein, surgery on 1/48 hard plastic figures can yield good results. The Hasegawa US ground crew kits have plenty of useful figures in overalls, shirts and trousers with bare heads and ball caps.