I love the EMA's personally they tend to work for me when I'm in a trend.
Be interested to know what other people are using.
Personally, I am using the 8, 18, 50, 100 and 200 on my charts.
18 is a random one, seem to like it with a crossover on the 8.
Those indicators may work well on other trading platforms such as Forex and stocks. But there in crypto it would be so tricky to use since crypto is so volatile.