Ok let's see if I can help you:
First to your question: "Wanderers" is a kind of organizatin. In fact Wanderers are the characters who belong to no organization and have the word wanderer in place of the affiliation name for that organization.
They used to be all neutral until Princeass Kojaku Hime came out, but there are netural non-wanderers too.
The wanderers so far are:
Princess Kojaku Hime
As you can see Faist and Tsubasa are both wanderers and they are pretty good fighters, too. You can add them to any of the two starters and get a team with a good offensive punch imho. Tsubasa special counterstrike and Fausts "Scorpion Grip" ability and his high armour make them both useful in a defensive approach, too.
The advantage card of Faust gives +1 armor at +10 levels which can be nice but is a bit priecy imho. The advantage card Tsubasa comes with is the Nullifier which will negate all positive stats nearby. this can be great, especially against a light team with a supporter that buffs (i.e. All light supporters to a certain degree).
Claire and Alis are both light and combat-oriented so they get along well with the light starter. Especially since Alis is Church and Claire is empire. That means you would have two of both organizations with the light starter - A good springboard for a party based on one of those organizations.
Now for Bael and Hel. First of all: Get the minis you like. If you can get them into the same party chances are you can take this army to the field sucessfully in Anima: Tactics.
Bael and Hel are both dark and would make a sneaky dark team with lots of abilities to use when combined with the dark starter. Hel would add to the two characters in the dark starter to form a team of three hard hitting Fighters with low armor who have interesting and varied attack skills. Bael will use her talents to either lend range support or debuffs to the mix and thus help the party. The advantage card Bael comes with is good for that.
Additionally Bael is also a member of Samael, like both characters in the dark starter and you will have a solid Samael team with these three if you want to take that direction.
So my recommendations from your previous posts are (choose one with a light starter and one with a dark starter in it
a) the light starter + Claire and Alis
b) the dark starter + Bael and Hel (Might swap Tsubasa with either Bael for more punch or Hel for a different fighter)
c) any starter + Faust and Tsubasa
If you have more specific questions just ask them and I'll try to help.