Learn Japanese: obentou ni wa takusan no shurui ga arimasu. - There are many types of boxed lunches.

お弁べん当とう　に　は　たくさん　の　種しゅ類るい　が　あります。obentou ni wa takusan no shurui ga arimasu.

The particle combination には is often used to emphasize the topic, especially when discussing existence, characteristics, or attributes related to that topic. It can be translated as as for or regarding, but often it's simply used to stress the topic being discussed.

Note

Breakdown of obentou ni wa takusan no shurui ga arimasu.

はwa

topic particle

のno

possessive case particle

がga

subject particle