I think tweets of elon musk don't have an impact anymore or at least not that big of an impact as his first tweet regarding cryptos and later his tweet about dogecoin had. This is a normal process, the more often something has happened before, the more people expect it and the less surprised they are about it. I personally wouldn't invest in any of the projects you listed because i generally dislike meme-coins because they have no use-case and i think that they harm the whole crypto space and of course because of the market situation in that we are right now. I think now is the time to load up on established projects, of course only if you think that the market won't drop any lower.