They might didn’t went to 0 against the dollar but... @QuipTalk

Answer:It is true that some coins have had success outside of BTC and ETH, such as XRP and MKR. However, it is also true that many coins have gone to zero against BTC. Revenue-based protocols are typically used to generate income for holders, so it can be difficult to find a successful one in the top 50. Aave and Maker are two of the more successful protocols, but there are many others that are not as well known. Ultimately, it is important to do your own research and understand the risks before investing in any cryptocurrency.

I'm not sure, stuff like aave or maker maybe? The other side is also true, name coins that stayed for years in the top outside btc and eth. Maybe xrp but that's all I guess

What about MKR?