We have right now a price of BTC around 8600$, this is around 2.2X less from 19k as high price in Dec.
Here is an idea, I've simply analyzed Top 100 coins from CoinMarketCap by capitalization.
I've put into a list coins that had highest price, ignoring coins that were all time high at the beginning of its journey and didn't have pumps at all.
So I got all coins that are down by 3X or more. Attached screen also has coins that are 5X+ and colored in blue, 7X+ colored in Red.
So most interesting coins(7X+) are Bitcoin Gold, Nxt and Smart Cash(14X).
I didn't investigate any technological stuff or progress per project, so if you would like to check some of these coins you have to do it before moving further.
Disclaimer. This information is not suggesting to invest in any of particular tokens, just an approach I found interesting.
By the way do you think you would use/pay a product that will alert you when price goes X from its high or any other information price related?