Where can I buy Tezos?

Could you please elaborate on the various avenues available for purchasing Tezos cryptocurrency? I'm particularly interested in knowing which platforms offer the most secure and reliable transactions. Are there any specific exchanges that have a good reputation for Tezos trading? Additionally, are there any considerations I should make before purchasing Tezos, such as understanding the risks involved or considering the long-term potential of the project? Your insight would be greatly appreciated as I navigate this potentially lucrative yet complex market.