I wonder that their discord isn't listed here. Apparently, Tachain gives away 400 tokens a day as a bounty on Discord. I saw it on Telegram.
https://discord.gg/Xs4YXtYWow. That's nice. No wonder it is not listed maybe it is a private channel. I also wonder why they don't do this on their telegram channel or have not announced this anywhere on their social media.
Good opportunity to grab some Tachain Tokens for free. They should promote the daily bounty more, to get more user in their discord channel.