How does the clan/titans system work?

The latest (0.20) update added clans to the game. Every day, the clan can battle titans for hero souls.
I started a clan for me and my friends, and then killed a few titans. Reward: 6 hero souls. This seems very little, considering I can usually make a few 100'000 souls per hour farming (and the 50 rubies I spent on creating the clan would have given me 1.2 million souls).
Do the rewards ramp up? What is the benefit of being in a clan? How do we cooperate to fight titans?
In general, what is the new clan system, and how can we make use of it?
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How do Titan shifters get their powers?
However, according to Rod Reiss, the power of the Titans resided within a human's spinal fluid, meaning that to gain the Titan's power, it was not necessary to eat the entire human, but rather a Titan could simply bite through the spine and ingest said fluid.How does one become a Titan?
As is shown in Ragako, humans are transformed into Titans. When Eren Yeager is injected with something by his father, it is safe to assume it is a "Titan serum" because one must eat a Titan Shifter as a Titan to become a Titan Shifter. It is shown that Titans try to eat Titan Shifters in Titan form.What is the strongest Titan?
1) Founding Titan This Titan was used by Karl Fritz, Ymir Fritz, Frieda Reiss, Uri Reiss, Grisha Yeager, and Eren Jaeger. This is the most powerful Titan of the lot.What Titans does Eren have?
In Attack on Titan, Eren manages to acquire the power of three different Titans: the Attack Titan, the Warhammer Titan, and the Founding Titan.CLAN MANAGEMENT | TAP TITANS 2
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