I have noticed that every cycle there are giant ALT coins. In the following cycle, the New top 10 is coming. As per the current condition, please be vigilant to invest in BTC.
Most Alts vanish in a bear market, the main reason is no fundamentals.
There are two methods you can invest, 1) RSI Based 2) DCA(dollar cost average)
I self going to invest in Alts after 2024.
There will be more and more web3 projects , AI projects will come. So be alert on some potential brand new projects.
Actually, it's okay if you want to invest in altcoins but you have to be very careful because we don't know what happens to the coins we buy. During this bear market, many altcoins will reset again and only altcoins that can truly provide benefits to investors can survive and bounce back into the bull market. For coins that have potential, you can do DCA as @OP mentioned. But still, we have to be careful in investing in crypto.
Maybe next year, the trend will change with a new one and usually, if one or several projects can explode in the next year, it will trigger the trend to come more quickly. So get ready for his arrival and try to find more information to choose the project.