How many plants are like chernobyl?

There are several nuclear power plants worldwide that share similarities with the Chernobyl plant, particularly in terms of design and technology. The most notable examples are other reactors of the RBMK type, which were used primarily in the former Soviet Union. However, many plants have since been upgraded or replaced to enhance safety and operational standards. Overall, while specific designs may be similar, the majority of modern nuclear facilities prioritize advanced safety measures to prevent incidents like Chernobyl.