The suitability of a particular domain extension depends on various factors such as the nature of your website, its content, and the country you reside in.
Currently, considering the ongoing conflict and its implications, .ru domains could be considered a viable option.
In an effort to counter sanctions aimed at ending the war in Ukraine, Russia is mulling plans to effectively legalize software piracy.
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It is advantageous to have domain registration in the name of hosting providers like Flokinet or Njal.la. This ensures that your personal information is not associated with the domain, and only IP address, email, and payment details are reveald.
It's important to distinguish between TLDs (top-level domains) and ccTLDs (country code top-level domains). ccTLDs are specific to country domain names.
Considering the current circumstances, .ru is a viable option, but it's crucial to purchase from a reputable and anonymous source. Additionally, .cr is an excellent alternative with no reported instances of domain seizures so far, although it is not an easy task to seize a .cr domain.
On the other hand, .su domains are particularly challenging to seize unless there is widespread international involvement.
Based on the information provided, .cr seems like a suitable choice for you. However, it's always a good idea to have a backup domain in case of unforeseen circumstances. While .is is also a viable option, the recommendation from Flokinet indicates their expertise in this matter. Nonetheless, you can still explore .is domains as they offer better privacy than .com or .net domains.
For further guidance on obtaining anonymous .ru or .su domains, please refer to my previous feedback where I provided alternative sources that do not require ID passport verification.