Really the best speculators have to back themselves not ask others for advice.
You need to take either a generally bullish or bearish position on a coin in the market* and set your entry and exit targets accordingly.
I have held off on buying BTC > 10K because I can see it coming back down.

*then take a position on the cryptomarket as a whole. Presuming everyone bullish here otherwise would have taken their money out and put it somewhere else like the regular stock market etc