any freeforum module?

As a drop-in replacement for the one that EL offers? No. Little point in it, if ask me, too.

Thanks for the reply

It means the only forum module which can be use in EE is the Discussion Forum Module?

Well, yes. I mean, you can use any forum alongside EE, but it won’t be a module, and thus not fully and automatically integrated with the rest of your site.

Thanks..