Wouldn't it depend on your hair type, and a load of other things? It would be nice if it was universally applicable, but I find other people's holy grail products or technique doesn't always work for me, if I try it out. So what I write below may not help anyone, but anyway...
Best result I get is not even a hair product. It's a 'cleansing lotion' by Avene (tolerance extreme cleansing lotion -- NOT the 'cream' which is almost identical in ingredients, but does not work so well on me for hair, nor skin). If I use that like a curl gel/cream - and a dash of (this sounds weird, it works though) MCT oil mixed in (NOT coconut oil) - voila!
If I'm out of the MCT oil, camellia seed oil (those work best on me, for not looking greasy, and working with my hair with very little needed..
and btw the cheaper camellia seed oil in grocery stores' cooking aisle is NOT the same as the best - which is Oshima Tsubaki camellia oil-- i used to use the other kind for at least 1.5 years, I think longer--
tried the Oshima, and AMAZED at how much better it was-- like how SistawithRealHair swears the Napa Valley Grapeseed oil was better than any kind she had tried-- must be a difference in how they extract and process them.
Another good one, from memory, was the flaxseed gel, did that years ago, but it was something you have to keep making and remembering not to make too much of so you can discard it, etc. That I remember mixing with different oils. I have used a TON of oils, but I cannot remember clearly whether the gel worked best on its own or with other things.
OH btw you know how people say to put in essential oils (tiny amounts) if you want to improve the scent of your oils? And safe ones of course.
Seriously, I know a fair bit about essential oils, perfumery related to that, etc. So I have been a 'hobbyist' for about a decade, have loads of books, including coursebooks, and know about dilution. But even so, I made a small EO blend of fragrance (i use the real kind, which aren't always the kind you can get at health food stores, that are traced and tested, so it wasn't that that was the problem), diluted THAT heavily, and then mixed it into a full bottle of my (beloved) camellia seed oil. All well and good? I would use that fragranced one daily instead of the camellia seed oil, plain. And walked in the sun with my son for up to 2-3 hours a day.
And it RUINED my hair - it became frazzled after 1 day - and got worse (had not connected the reason)...
that was the reason for my most recent chop (hack job).
So yeah..just be careful about fragrance, oils, and the sun!