https://langeek.co/en/grammar/course/883/postpositive-adjectives

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The big house is for John.

The book on the table belongs to my teacher.

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We need someone strong. 

I saw something extraordinary. 

Those anxious to leave ... 

Going somewhere nice? 

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passengers ready to leave

friends happy to see me

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One of the criminals executed was a serial killer. 

The girl rested and reassured looked at me. 

This is my father who visited us last night. 

The book, which I was reading last night, was amazing. 

The fact that he is here now is all that matters. 

They need me to make a decision whether I should stay or not.

Look at that three old men sitting on a bench. 

 present participle clause as an adjective

I was left with my heart broken into a thousand little pieces. 

 past participle clause as an adjective

The girl having cooked tonight's dinner is a chef in a famous restaurant. 

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同位语也是属于后置定语，因为小于是定语，同就是等于，小于等于都是定语。

https://baike.baidu.com/item/%E5%90%8C%E4%BD%8D%E8%AF%AD/7453238?fr=aladdin

This is my friend Harry. 

We both come from China.