Bitcoin Cash is the most popular Bitcoin hard fork proposed by Roger Ver in 2017 as a solution to the problem of slow transactions in the Bitcoin network. The idea was to create a version of Bitcoin that would be better for payments, while original Bitcoin is considered more as a store of value. Bitcoin Cash has a bigger block size than Bitcoin so the transactions of this currency are faster and cheaper. On the other side, it requires more resources to run the full node of Bitcoin Cash which makes it more vulnerable to centralization.
Bitcoin Cash quickly attracted a huge following and became a prominent part of the cryptocurrency market. BCH is available on many exchanges and is supported by numerous crypto services. Since the launch of the project, it has never left the top 10.
Streamr DATAcoin (DATA) is the token powering the open-source network Streamr. It is listed on the number of exchanges paired with other cryptos. You can also buy and sell DATA with the Korean platform Coinone.
Dogecoin (DOGE) was founded in the US in 2013 as a joke but quickly gained a large following. It became a popular cryptocurrency (DOGE) used for tipping the content creators (mainly on Reddit and Telegram). As the creators had no serious plans for their currency they didn't elaborate a roadmap and were not working on the improvement of their project too much. The founder of Dogecoin Jackson Palmer left the project in 2015.