Which Altcoin is next to Bitcoin and is being accepted worldwide?
These are the ff. Altcoins according to their ranks.
1. Ethereum - world’s first blockchain supercomputer
2. Bitcoin - first hard-forked cryptocurrency
3. Ripple - cross-border payment platform
4. Litecoin - confirm transactions faster, and utilizes scrypt as proof-of-work algorithm.
5. Dash - open-source p2p cryptocurrency
6. Ethereum Classic - decentralized software platform featuring Smart Contracts
7. BitConnect - can be exchanged directly between its community members without a central crypto asset exchange.
8. Zcash - built to secure your payment history
9. Monero - advertises itself as the ‘Private Digital Currency’
10. Neo - smart-economy software platform
11. BitShares - offers much more features than just smart contracts
12. Namecoin - blockchain-based domain registrar
13. Siacoin - decentralized cloud storage platform
14. Komodo - packed with best features of other coins.
15. Steem - social media platform that encourages people to share interesting content and get rewarded.
>But if you want you can check it in the google to know more about altcoins there are so many infos about the altcoins.