I am laying out a long project to do (and hopefully it will only take a
short summer to finish it). It will be a 6' tall TV center, with raised
panel cabinets and all that (lots of open wood surfaces, both inside and
out). I will use WATCO Oak finish (prefer Natural but so many oaks in the
living room is already stained with Oak finishes, so makes senses to
follow the surroundings, right?). Now, I like to final coat it (is that
called "clear coating"?). What should I use?

Wax? Polyurethane? Lacquer? Spar? Shellac?

Semi-gloss?

Now, the main question, should I use a spray gun for final clear coating?
Or use a can spray (like Minwax)? I have air compressor, so...

I never used final coatings, only used WATCO oil and wax, by hand/cloth.
Appreciate suggestions. I have kids. This project is going to be
something I would actually show off my work (being obvious in open space,
like a living room where everyone will see it, instead of small tables
thats easily overlooked).

Chuck