The most profitable coin to mine for 2018 and the end of 2017 for me was and its still is IntenseCoin (ITNS)
Wokring on Cryptonote techonolgy and cryptonighe algorithm for me this was the most profitable coin ever.
I am mining on CPU with only 5 and sometimes 6 cores on their official pool and I make ton of profit only through mining.
Give it a try and check it, I know you will be satisfied with the result
Anonymous currencies are the trend now , and they have the most bright future of all coins.
Check IntenseCoin bitcointalk ANN and start mining today, you won't regret it
Mine it and tell me how it goes
try mining Dinastycoin (DCY) it is way more profitable,up to 100% more profitable than ITNS
maybe at the time of the post the difficulty was low enough for you to make "ton of profit"
it only yeilds 0.35$ a day on a Ryzen 7 1700
well every single coin is not worth mining at the moment due to a huge slump,but DCY is the best one at almost 0.5$ a day
makes ROI of a 400$+ Ryzen 7 slightly over 2 years,which is very meh