TRON, IOTA and Ripple.
TRON has no product, no client software and is just a hype. Why people invest money in something that doesn’t even exist does not make any sense to me. Bitcoin worked flawlessly for 10 years before people started believing.
IOTA does not work. Flaws have been found. Ton of problems with the wallet and transactions. Same point as before. Why would you invest money in something that does not work. Makes no sense.
Ripple. Pre-mined by rich banks. This is as close to a scam as it gets.