I think you're asking for too much. You want a coin that fluctuates so much but is so predictable to make some profit. It's a trade secret for most traders out there. Though almost every cryptocurrency in the top 50 fluctuates so you can start with that and try to use different exchanges.
Yes, I guess I am asking this but the only reason that I ask that much is because it's what I am currently experiencing and was curious to know whether this is a one off or if there are other coins that follow such easy patterns to profit from. From the sounds of it I have been getting spoilt and this is a one off.
Since I posted this a few hours ago I needed to get some sleep and OMI was heading upwards towards .97c so I made some sell orders between 0.097 and 0.98 which freed up some funds to set some buy orders before I went to bed.
I set some buy orders at 0.901, 0.911, 0.921 and 0.931 and set an alarm to wake me up a few hours later. I woke up and all but the 0.901 buy order had been triggered. On top of that, OMI has now climbed back up to 0.98 and is very close to triggering my sell orders at 0.989 and 0.999. (0.989 just triggered before I could finish this post)
I've cleared a few sell orders from 0.97-0.98 to free up some more funds and set another lot of buy orders from 0.911, 0.916, 0.921, 0.926 and 0.931.
I'm going to go back to sleep now and half expect that I may wake up to some of those lower buy orders being triggered. Now that I've posted this, I'm sure it will just fly past 1c instead or skim the top of my buy orders lol but we'll see.