Responses
If you mean like has threads of fate then:
https://www.mangago.zone/read-manga/threads_of_love/
https://www.mangago.zone/read-manga/akai_ito_no_shikkou_yuuyo/
Are the first that come to mind.
If you mean that have the red string of fate then:
https://www.mangago.zone/read-manga/akai_ito_no_shikkou_yuuyo/
https://www.mangago.zone/read-manga/threads_of_love/
Are what first come to mind.
Any mangas like red string quest?