If you want a professional table try to split a piston in two, then delete the tail, rotate the head and you have a perfect table with enough space to a cake. To a chair use doors and trapdoors or simply some stairs, to make a bar put some hooks on barrels to make dispensers, than use the same trick for chairs. After the process you may need to decorate, a soul themed room need to contain glowing Sculk Catalysts, you can do it with a debug stick Also add chests to a cool storage room, i recommend usig woodland mansion storage room.