What suits you depends on what you plan to do! Can you give some idea? For example, cutting panels, internal and external profiles, holes and pockets, or full-blown 3D carving? Size of objects?

I use Vectric vCarve which is a very easy to use package aimed at woodworkers and includes CAM, but is not cheap. However, the time it has saved me over fiddling about with "free" software had been worth it. Its bigger brother, Aspire, includes 3D capability. Both are available as free trials. If you want a free (really free for non-commercial use) professional-style 3D CAD+CAM package then Fusion 360 would be hard to beat but expect a long and steep learning curve. Great for mechanical design but OTT for woodworking, maybe.

Horses for courses, what do you need to do, and don't expect the earth if you want it free!