I’ll take a stab at the most popular:
Songhai, Abyssian, Magmar, Vanar, Lyonar, Vetruvian
For weakest and strongest I think it is pretty balanced. These are my personal thoughts on what I have seen personally in game.
If I were to make a tier list I would say something like this:
[STier] means cream of the crop.
[ATier] Means viable just barely weaker than S.
[BTier] (if it existed on my list) Would mean you put yourself at a disadvantage competitively
[CTier] Would mean you would only play in certain situations(counters an extremely popular deck)
S Tier- Abyssian, Songhai
A+ Tier- Vanar, Magmar
A Tier- Lyonar
A- Tier- Vetruvian
Why is that?