Don't spend much time worrying about "did I pick the right acorns".

No one pays attention to the acorns you picked that didn't grow (they are cheap and small and barely worth noticing).

What everyone will notice is the acorns that did grow; the oak trees are impossible to miss.

This has a nice self-downside-capping property.

If it doesn't work, no one will notice, and if it does work, everyone will notice.

So simply spread a diversity of cheap ones and don't overthink it.

This is similar to my advice to people considering blogging but nervous about making their content good enough: "Good news, no one will read it anyway."

As long as it's not controversial, the only way someone will bother reading it is if it's good, which is self-capping downside.