Which coins under $1, $0.1, $0.01 do you think that are undervalued?
Most of the time people look at the market cap instead of the price and there is a reason for that, the market cap indicates the amount of people that have put their money behind the coin, it does not matter if a coins has for price 0.1 dollars if the market cap is a billion dollars, that coin has very solid support from its community.
I would look for coins that have fallen hard percentage wise in the last few days, might get a bounce upward for a quick profit.