Are you aiming just for (the armor/weapon looks) or for BiS (Best in Slot) stats ?
Once I know, I can give you a tailored list of materials to farm! FFXIV: A Guide to Eureka in 2023 Eureka
Unlock Logos Actions in later zones for powerful buffs (Reflect farm is popular for fast leveling). Are you aiming just for (the armor/weapon looks)
Join a party for "FATE trains" (Notorious Monsters) for fast leveling and Protean/Anemos crystals. Y:12.5). Slot materia into your gear
Complete "They Call It Eureka" from Galiena in Rhalgar's Reach (X:9.8, Y:12.5).
Slot materia into your gear, as it is essential for elemental bonuses.