I am also struggling, so far I only have Kushina and rin, idk if there are any better ones but nobody comment.

i think i itachi is the most strongest for pos2

Taking into account the meta you should go for Itachi edo full bt, but there are other options like Jiraiya Toad, Kakuzu Creation, Rin Nohara, Orochi GNW. Jiraiya has the best value for money, in addition to having an absurd kit, it's still coming almost every week and in all Fuku packages. Kakuzu may seem like a goal from the past, but for those who haven't reached 1KK yet, he's a ninja that really pays to keep in mind.

ah i have rin, kakuzu, jiraiya but i don’t think my lineup is good enough so i still want to have someone more

Jiraiya and Orochi are great support duo for Naruto, tho the latter is usually kinda pricey

thanks

Itachi edo or Orochimaru GNW

yeah i have a idea to use both with naruto six path

yeah although we can get both in fuku