Explanation
Means 'apart from ~ there's nothing else,' implying the Noun is the best or most suitable choice.
Formation
Noun + をおいて他に + Verb negative form
Detailed explanation
The structure Nounをおいて他に〜ない is used to express that there is no substitute for the Noun, no other choice, or that the Noun is the best or the only one to choose among various options. This form is often used in praising or making strong positive comments about someone or something.
Examples
Kono shigoto wo kare ni makaseru hito wo oite hoka ni inai.
Apart from him, there's no one else to entrust this job to.
Kono mondai wo kaiketsu dekiru no wa kare o oite hoka ni inai.
Apart from him, there's no one else who can solve this problem.
Kono chiiki de oishii men o tsukuru mise o oite hoka ni nai.
There is no other restaurant in this area that makes delicious noodles apart from this one.
Kanojo no utagoe o koeru kashu o oite hoka ni inai.
There is no other singer who could surpass her singing voice.
Practice
Grammar content sourced from hanabira.org.