Everyone who have been claiming ripple is not mine-able are right.

But, there is a technical workaround to it. EoBot mining pool does allow you to mine using any kind of mining device to appropriate SHA256, Scrypt, X11 algo and as reward it allows the user to choose preferred coins such as Ripple, Cardano, LTC, ETC, & several others. I tested it using ASIC S9 and was able to transfer it to my bitstamp account. This is similar to how NiceHash does things by rewarding you bitcoin. If you find this tip useful, please consider signing up there using my affiliate link in that mining pool -> https://www.eobot.com/new.aspx?referid=1857472

Thank you for the thought! I assume cloud mining contracts fall in similar category?

I just wanted to get some opinion on which crypto-currencies are worth mining as of November 2017. It seems the market and computing power is changing day by days and other alternative currencies are getting good responses for being easy to compute. Which machines do you think are coming out that can do multiple mining? Is investing in ASIC or other similar technologies worth it?

I'll digress a bit... I'll appreciate any friendly contribution in these addresses. If I do well, I'll pay it forward in this community.
BTC: 1Lg3NUYPF5ExTVn3SvHAmVBvUb39m7grZM
Ether: 0x7dff5E6D3fB83640aD6bE2EE2a7a2c0Ee8441BFB