Got a question about Villager Minecraft?

I have a librarian villager and ask if I can get plunder from this villager, best plunder 5 but plunder 1 is also ok

Yes you can.
You can get any book except Soul Speed from a librarian

Just keep taking the lectern off and on again and again until he offers you to loot it. Every time he has lost his job, he offers a different book.

Incidentally, Looting 3 is the maximum. It doesn't get higher anywhere.