The best way to approach this kind of market condition is too just buy in bulk, specially if you have money to spare and then hold. Sometimes its better not to complicate things in a bear market, just absolutely buy. Others are selling at cheap prices because they are afraid of the conditions, like what we are seeing right now, the looming war between Russia and Ukraine. But for wise investors, this is the best time to accumulate because the price is going down.
I would say that if you want to complicate it, even in that situation do not make it too over complicated and just do a level buying. Like let's say there is something at 100 bucks? Just do 100 bucks and 90 bucks and 80 bucks and 70 bucks buy orders. That way you would buy more and more while it is going down, you could drop that to only 100-90-80 as well without need of using anything else. That is of course just something that I would suggest if you want to keep it simple while doing more than simply just buying it in bulk right away.
I am not saying that this is actually doing something decent, it is just a simple method that may work or maybe it will not work, but it is actually a decent method for sure.