There are plenty of "productive" and active altcoins and that isn't going to change. The only difference we'll see over the next few years is the removal of deadweight projects from the market.
until now there are still many projects that are still very active in crypto. so we do not need to hesitate with all that, because basically the project will still continue well. but there is also a project that still makes doubts because the current project is indeed a scam.