Monero
Monero XMR is one of the popular privacy-centered cryptocurrencies. The project is fully community-driven and focuses on decentralization and financial freedom. XMR transactions are quite fast – just like Dash, it takes around 2 minutes to get a confirmation.
Dash
Dash is a cryptocurrency that has been around for a while. The average transaction time for a DASH coin is around 2 minutes. Dash has the block size of 2 MB and can process up to 56 transactions per second.
NEO
NEO is a Proof of Stake network that processes transactions at a pace of around 1000tx/sec. It takes about 15 seconds to get your transaction to confirm – due to this, NEO was dubbed as “Ethereum killer” by the community members.
Ethereum
Ethereum network, despite the issues of scalability and certain delays with network congestion, takes about 14 to 17 seconds for the transactions to go through. Ethereum blocks handle about 12 transactions per second.
Litecoin
Litecoin is one of the oldest cryptocurrencies existing as an alternative to Bitcoin. The main point of LTC creation was to speed up the transaction process. Block generation usually takes no longer than 2 minutes and 30 seconds.
https://swapzone.io/learn/how-to-exchange-crypto-fast/I'm sure there are plenty of projects with super fast block times. Fujicoin I think is something like 20 seconds or so but that doesn't mean much of anything. Its like when people talk about supy of a coin and smaller supy somehow should make a project worth more. Why? I wouldn't focus on conf times too much. Bitcoin is doing quite fine the way it is