T coin can refer to several cryptocurrencies, so I'll provide information on a few options:$ARPA

1. Thundercoin (T): A cryptocurrency focused on gaming and esports.

2. TerraClassic (LUNC, formerly LUNA): A cryptocurrency from the Terra blockchain, which collapsed in 2022.

3. Threshold (T): A cryptocurrency merging Keep Network and NuCypher.

To provide more accurate information, please specify which T coin you're interested in or provide more context.

Some popular exchanges where you can find T coins include:

1. Binance

2. Coinbase

3. Huobi

4. Kraken

If you're looking for information on a specific T coin, please provide more details, such as:

1. Symbol

2. Blockchain

3. Use case

4. Website

I'll provide more information on the requested T coin.