In addition to the suggestions others have made, which are very good, I have a couple of go-tos when looking for figures.
Ultracast out of Canada has a good selection of WW II German figures, including a variety of panzer crewmen:
https://www.ultracast.ca/1-35-German-Figures-s/201.htm
Ultracast's figures are nicely sculpted and crisply cast, and very much recommended.
CMK out of the Czech Republic has very good figure sets generally, and this set specifically:
https://www.cmkkits.com/en/figures/german-tank-crew-3-fig/
CMK is worth bookmarking.
I looked at ICM's site; ICM has some good figures in various scales, too. But no WW II German tank crew. Nevertheless, ICM is another good one to bookmark. You can find their sets via retailers, but also on the secondary market via eBay and other places.
An old standby is Verlinden, too. Verlinden's products are coming back onto the market, though Greg Cooper's Scale Model Graveyard in Denison, TX. He bought molds and masters for much of the catalog, and has started offering some items through the eBay store racershaven. You can also find a lot of Verlinden figures on eBay and other secondhand sources. It's worth it to keep an eBay search for Verlinden and various scales.
Hope that helps!
Best regards,
Brad