Thank you for sharing Jelena!
Others may have already seen this site but it is an incredible tool separated by colony group. It takes you directly to the location of the settlement. Many settlers moved from village to village, so helpful to visualize or wonder why they moved across the river, etc (usually due to need for more land due to increase in settlers in villages).
There is also a blog search tool that has helpful information as well.
https://www.germansfromrussiasettlementlocations.org/
Great List Jelena, Thank you
You may be interested in the Volga German Project