I made the most money from ethereum from buying when it's still less than $100 until now (still get eth everyweek from mining) and bnb (bought at sub $15) because the price increase a lot the past month. Other than that two maybe neblio at 2016 (bought at ico and sell it around $48 each on december 2016). Surprisingly i don't own / earn a lot from bitcoin, don't know why but i never hold it for a long time and i almost always sell it for another crypto or take my profit after maybe 10-15% price increase.