getting another zeta weapon need help

[Valkyrie_Lenneth]

There is no chat options I checked

Which step are you doing? You don't get a quest for the subsequent relics beyond the ilvl80 relic, you just follow the steps.

If you have the zenith, you just start farming fates for atmas, if you have the atma, you just go to mor dhona, talk to the npc, and get the books.