If you want to invest in meme, what you need to care about are factors like the community, who is behind and supporting it...other things like utility are really not that important. Like the memes you listed: doge, shiba or floki are all Elon related memes and they exist because there is a large community supporting them before they start creating utility.

Cryptocurrency is still a highly speculative market, so don't be naive to believe projects that claim to have practical applications, utilities...they don't guarantee us anything either. Let's see if projects that were once considered market breakthroughs like EOS, ICP, LISK...do anyone still remember them and do they still exist?