You must have some intention about a new use of the space. Are you intending to gut, then rebuild - the current finished condition limits modification without some construction.

Here’s a LQQK at ours - perhaps some ideas.

https://youtu.be/3FqMEqaf0-I

Need a floorplan and an explanation of how you want to use it since the pool table is going away.

What do you need the space for, man cave, playroom, extra family room, media room, bar/wine tasting room, gym, yoga studio, hobbies, etc ?

I’m Looking for some ideas for entertaining, where to put a couch and what kind would look best.

As @ShadyWillowFarm mentioned, need a basement layout if you want suggestions with dimensions...without that nobody can tell you what would be the best place for anything.