i usually like to have all my party members holding an item so even if it's just a berry, i'll attach something to them just to have it. lucky eggs are good, i usually pass those around the party evenly so everyone can level up and stay together. i like other items like quick claw, leftovers, shoal shell, king's rock, amulet coin. not a huge fan of the items that boost certain types of moves bc i'm not sure how effective they really are lmfao. but if that's what i have and i have nothing better to give my pokemon, then they'll do.