>>>is there any sefer that is accepted by the litvish community, like if it says something there, everyone listens
Saying “the litvish community” is like saying “the frum community” or “chassidish community” (both of which would include Chabad).
The “litvish community” is just a section of the broader “frum community” which is a section of the broader “Jewish community” which is a section of the broader “mankind” (l’havdil).
In the litvish community itself, there are sub-communities of talmidim and followers of their own rabbanim and drachim.
So, yes, each of those communities has a sefer or rov whose derech they follow.
Just as Lubavitchers follow the Chabad rabbeim, students of Rav Miller will follow him, followers of Rav Belsky will follow his drachim, etc.
If someone isn’t a student of such a prominent rabbi, he will still have his personal rov who he follows.