As it is said - the best time to buy BTC is the current day we are in
And if we have money that we wish to invest and we're ready for it.
There are no perfect entries, because each one would become perfect if we hodl long enough.
Someone who's trying to find the perfect entry will never find it. All they'll find is perfect disappointment that they have never bought today.
Waiting for the perfect entry before investing in bitcoin and build a portfolio is a bad strategy. Because the perfect timing might never come and while you continue waiting for the perfect timing, you are wasting time to build a portfolio and accumulate. If we have money to invest in bitcoin there is no time to wait is just to invest in bitcoin and continue accumulating consistently with a perfect strategy.