I live in Germany. It's also very straightforward here to become a citizen. You just need to live here legally for 8 years, learn German to B1 proficiency, take a test about how our government works and pay €255.

One thing that's a big differentiator from the US system, is that the immigration system doesn't use lotteries or quotas. As long as you fulfill the requirements, as listed in the law, you get citizenship or the relevant residency permit.