( smoothies - blender-making ) -- be creative!! best smoothie-like meal or anything best that uses a blender or most helpful source to find as such
please see https://food52.com/hotline...
So subjective; and we don't know your standards or preferences.
There are whole manuals and books out there.
Consult a library or bookseller and start making recipes you like.
Choose by popularity, authors you respect or maker of your machine(s).
Choose recipes by ingredient or function (not only smoothies, but soups, sauces, marinades, muffin or pancake batters, spice-blends or spice-pastes, speads like tapenade or baba ganoush, hot drinks).
Enjoy your experimenting...
have no preferences
Here are a couple I've used & learned from (but/and there are many more out there):