Swinger clubs recommendations in Bruxelles?

Following since we are a couple times a year in Brussels - all research we did pointed to an overload of strange single men in ratio to couples

There are none. That was easy.

What about LE VAL D'AMOUR?

We were thinking about popping into Brussels on the way from Netherlands to Paris for a sneaky club visit... Unless reccomend that we should stop somewhere else? Haha!

I don't think it's any different from Cocoon, at least as regards the "overload of strange single men" aptly referred to earlier.
As regards places to stop on the way from NL to Paris, there are at least a dozen, but Brussels is not one of them. Depends where on that route you prefer to stop. Maybe Acanthus? Happy to show you around xx

Hmmm.. Yeah, that sentiment is enough to turn us both off.

Acanthus actually did pop up in my research of "places between"... When I looked though, it seemed a bit more challenging to get to using the train system. I looked again just now though, and getting to Kortrijk (which I assume is the closest/easiest) actually doesn't look too bad.

A very kind offer also.

Yeah, Google will show you the options but I think it is doable.
Just ping us if you need any more advice.