The best way to buy altcoins in a bear market is dollar cost averaging, you can't predict the bottom of the market so when dips happens use part of your money to buy and wait for another dip to happen, it might be in the next two months, no need to rush things up.
Yeah you are right that's the best way to buy any coin in bear market, but lots of people don't know, when they see a huge dip they buy with all their funds, meanwhile in bear market the dip keeps getting dipper, once all funds have been used to buy a huge dip which they might think is bottom, another huge dip resurface thereby making them not be able to buy another dip dca is the best option