Gurthang, sword of Túrin Turambar
I read the Sillmarillion recently, and it has a talking sword (Gurthang) not disappointed!
( theniwokeup has been awake since, Sat 15 May 2021, 19:59, archived)

Good choice.

( Mr. Tea 'ulmmm'/'mmneurgh', Sat 15 May 2021, 20:16, archived)