Best ereader for multiple languages

Hi Reddit,

Are there other people here who use ereaders to read in multiple languages? Which one would you recommend in that case?

I am looking for an ereader that I can use to read mainly Japanese and Chinese books in, but if possible it would be great if it also supports Dutch, French, German, English and Spanish. It would be great if it is possible to install a dictionary, or if there is a built-in one.