Best overall teams list

Honestly, no probably not.

You would need to provide some context to the scenarios you are looking for a team to use.

There are conflicts between teams used and differences based on PvP and PvE, and even different suggestions based on which team they will face.

Not sure what you mean with best team for each tag. The best teams are listed below (no particular order within the tiers):

Tier 1:
SLKR
Rey
SEE
JML

Tier 2:
GAS
DR, Malak
JKR, JKL
GG
Padme
CLS
BH
Troopers

Tier 2.5
Bando

Tier 3:
Traya
NS
Geos
Mom
JTR
FO
Palp
...

Several good standalone chars to watch out for aswell: Thrawn, Vader, Wat, Armorer, Nest