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.

Itachi edo or Orochimaru GNW