How to apply for foreign nationality to facilitate same-sex marriage?

Legalized countries: Denmark, Norway, Sweden, Iceland, Netherlands (the first country to legally recognize same-sex marriage, and same-sex marriage families enjoy all the treatment enjoyed by traditional families), Spain, Germany, Finland, Switzerland, Portugal, Belgium (the second country to legally recognize same-sex marriage, but the law does not allow same-sex families to adopt children), Britain, Canada, Brazil, Mexico, South Africa and New Zealand.

Countries legalized in some areas: the United States, Argentina and Australia.

The problem is that only one of you has more than one nationality to register. You immigrate to the above countries first, and then ask if you can register to get married if you live in that country. I'm on the Spanish side, so if both parties are from China, they will get married in the embassy, which is of course the law of China. It is not clear whether marriage can be registered with the host government. But it doesn't matter. Once you come to these countries, you can live together generously. No one will discriminate against you. It's very open here. It's not too late to register for marriage until you get your nationality. I hope it works for you.