It's very risky to try to buy Tezos now... It's not a token, is a new block chain and it is still under development: people who bought during the ICO doesn't even have a real wallet yet! If I would sell you my Tezos, I couldn't do nothing...
Better way is to follow the official information by the team, I paste below some info from the official newletter, perhaps it is still possible to subscribe it.
Good luck!
CS
"Community
Creating productive community spaces and forums will be critical to the long-term growth of Tezos. After the closure of the Slack channel (due to limitations in Slack’s security model which made it unsuitable for our purpose) we looked for an alternative. We found two!
We suggest general chat happen on the matrix network, a modern federated network for decentralized, secure online chat. You can access it using several clients, such as Riot. Technical discussion oriented towards participating in the alpha net (our current testnet) should happen on the #tezos IRC channel, on irc.freenode.net
There are also two unofficial community forums:
https://reddit.com/r/tezos and
https://www.tezos.community."
The Tezos project website (
https://tezos.com) will be updated soon — stay tuned."