This is a circa 1930-40 Duncan Phyfe style dining set.
The table has a value of $300 to $400 and each chair would be valued
at $40 each for dining chairs and $60 for arm chairs if the upholstery is in good condition.
This style was made by most companies in the US during this period, so unless
there is a maker's label under a chair or under the table, it would be impossible to know exactly who made this set.
Some sites that I recommend are Varagesale.com, Chairish.com, Ioffer.com, Furnishly.com, Deconet.com, Lushpad, Krrb.com, and letgo.com.
You can also go to invaluable.com or liveauctioneers.com and search their directory for an auction house near you and consign to them.
To finish, I will need you to click the five stars at the top of your screen and hit the submit button, thanks!