OpenCart Community

Hello
I have a question. I am creating a multi-vendor site, but I am confused about the best type of extensions, especially for multi-commerce.
Can anyone give me advice on which one is the best extension, Like, Amazon or Noon, and also compatible with a Journal template?
Thanks

First you have to decide whether you even want to use the OpenCart framework, or the Journal framework, two different things, with the latter of poorer quality and a tendency to clash with many 3rd party extensions. And then, whatever kind of multi-vendor system you go for, do a careful OpenCart marketplace search first, to see what's available. And wait until at least the upcoming OpenCart 4.0.2.4 has been released, previous OpenCart 4 releases aren't yet stable enough for live websites.