Hi and welcome! Your primary area of interest is covered very well in the hobby, probably better than any other era. So you'll have lots of choices including King & Country, John Jenkins Designs, and Thomas Gunn among others. When it comes to German WW2 armor I think you should take a look at War Park if you haven't already. They've been making some really wonderful stuff, and their figures are well done too. Happy hunting and glad to have you aboard!
jOE