Usually for currency pairs with little past data, we often use the fibonacci level as the simplest. There are 2 levels that I often use are 100% Fibonacci and Fibonacci 161.8%.
However, there are many cases where the price is too strong due to FOMO especially crypto, we can see 200%, 261.8%, 300% ... So, I still recommend that you close 1/2 or close 80% of the trading order when reaching 161.8% because this is the best area
Lately I often see crypto as an RSI, also for extremely high potential prices, which can be combined. For example, you can see a $ 14k profit-taking analysis for bitcoin in my previous analysis report
With current RSI, I forecast that when RSI reaches 90, it is time for us to close 100% of trading orders Hopefully analyzing LINK will help you trade crypto more effectively and have a happy day :)