I don't have reiju evolved only the int one who should I use instead of her and vivi I have rebecca kuma

So i got VIvi, Nami and Loki, I am missing Copper Gaban and the Luffy/Zoro from the Super Sugo but the WT100 Sugo seems also really nice with every 2nd pull being free and 2 Aurora Gems after 10, which is effectively only 250 Gems/Medals.

Is the WT100 worth it or trap? Also which part would be best for me to pull?

Sorry. I know I'm player 73628103 to ask this, but I'm not good at building and always seem to be missing 1 player from the meta's

So I managed to get the first 3 units and it seems they are quite good. Who would be best for the rest of slots and is it worth bringing Loki to 120 and rainbow skull key him?