The solana meme coins could be good way to invest into real world projects.
I think the closest thing you can try to do is to use a memecoin "inofficially" as an utility token.
Basically the plan would be:
1) Buy up or mint an existing but underrated (almost dead) meme coin - this should give you less problems than if you create it yourself.
2) Develop a business which could fit the demographic the meme coin is directed to.
3) Offer services of your business for the meme coin, ideally "backing" the meme coin with your company's services. For example, if you are a gaming company, sell a single DLC for the same price regardless of the memecoin taking a dip.
This way, you aren't officially the issuer of the coin, and the coin is also no share of your company nor gives it any right to the owners. Thus for the authorities you're simply a business which happens to accept a certain cryptocurrency for their work, but you can both promote the coin and promote your business.
For memecoins this should work mainly in fields like gaming, where for example you can create a mascot based on the meme coin and use it in your game.
Of course if you want to invest a bit more time for compliance you can also set up a "real" utility token (officially associated with your company) with some characteristics of a memecoin, but that would of course be more costly. You can even create a security token but o48o is correct this has never really got popular due to all the legal hassle.