Ripple is definitely not the coin to be investing in at the moment even if it looks cheap. They have faced a lot of rejections this year alone trying to get in on a popular exchange listing. Also the community don't like XRP because it is centralized and backed by the banks and other financial institutions. And some news has just come forth that they tried to bribe their way into the exchange listings... Shows signs of desperation and how their project may be failing at the moment.
https://www.bloomberg.com/news/articles/2018-04-04/ripple-is-said-to-struggle-to-buy-u-s-listing-for-popular-coin
https://coincentral.com/even-with-money-on-the-table-top-us-exchanges-dont-want-ripple/