Bitcoin tops and bottoms (maro trend) can easily be identified if you use the RSI and Stochastic RSI on 2week candles. You can draw a channel on both indicators.
- When the top of the channel is reached on both indicators = top
- When the bottom of the channel is reached on both indicators = bottom
Last top signal wasn't that good (42k) but as you can see on the RSI bearish divergence started since then and in the end Bitcoin fell way below 42k.