Mainstream
noun, の adjective
The origin stream, that's where everything comes from. That is the mainstream.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
アマゾン川の本流は水が茶色いそうですよ。
Apparently, the main stream of the Amazon River is colored brown.
私にとっては本流のスタイルと同じように見えます。
It looks like the same style as the mainstream to me.
日本文学の本流と言って、最初に思い浮かぶのは誰ですか。
When you say mainstream Japanese literature, who is the first author that comes to mind?