Tried MANA[1], Joylent[2] and Jake[3] back when I started.

Out of the those 3, MANA was clearly superior. The main reason was better texture. Taste was also a factor. Both of Joylent and Jake had a really distinct taste (most likely) caused by sweetener they used, which was really unpleasant.

In fact, I never managed to finish Joylent/Jake because I just couldn't get myself to drink them. On the other hand, I still use MANA for ~7 meals a week to this day.

Someone I know also tried Huel[4], but their verdict was "would not recommend".

[1]: https://drink-mana.com/ [2]: https://www.jimmyjoy.com/ [3]: https://jakefood.com/ [4]: https://huel.com/

Huel is the only one I've tried, and I've liked it enough. The flavour is not great by itself (a sweet, malty vanilla flavour for the flavoured one, which is a little weird but fine), but I tend to blend in ice and coffee or fruit (bannas and blueberries, raspberries, all work well). The flavour packs they sell didn't do much for me, they seemed too sweet for my taste (I didn't try them all though).

The other big thing I found was the texture improves a lot if blended or left in a fridge for a time before drinking. Shaken and drunk straight away the texture isn't great.

I have a Plenny Shake° once a week or so. It's fine. I tried a few before I settled on it, including Huel. I prefer the taste and texture. Ymmv.

Here's a list of Soylent style products; you can filter by shipping destination: https://www.blendrunner.com/

° Actually my bags still say Joylent, which was the name until a few months ago. https://www.jimmyjoy.com/