Top 3 coins for continuous DCA during the downtrend in 2022, the 3-year ROI is as follows:

.BTC (20k$) currently 121k$ , ROI 6x

.ETH (1k1$) currently 3K, ROI ~3x

.BNB (236$) currently 700$ , ROI ~3x

=> Over the past 3 years, investing in BTC still yields the highest profit (even for those with limited capital)