Easy to print E-25 series tanks, 1/100 scale, will want some greebling if scaled up. These are based on the E-25 paper(alt history/ never/ made/ fiction?) panzer tank destroyer. The file I have labeled as "stug 2" is a model of the images I have found online. The other version is a panzer 4 turret on the modified chassis. If you want a panzer 3/4 or a stug that more closely matches the late-war tanks, especially for alt-history or continuation war games like konflict 47, these should fit the bill.
Scale by 1.56 for gaslands / hotwheels / 1/64
Scale by 1.786 for 28mm / 1/56.