Really interesting table.. Can’t see style of room, colors etc. but doesn’t appear strongly formal. Why not a table runner of a natural color & some kind of long vessel - think trough shaped - filled with some kind of greenery or shapes with texture?

Some kind of centerpiece -- fruit, flowers in a basket perhaps or just the basket and a runner to add some color or texture.

No place settings. Maybe a fruit bowl or flower arrangement.

We have a pine picnic table that my husband's grandfather built. We never use the table for dining and I don't have place settings to keep it set so I decorate with the ceramics and linens I have from traveling. Here, in our Austin house, it was right at the front door so it was like an art installation. In our upcoming house it will sit between the sunroom and the kitchen which means it'll have a little bit more activity but when not in use will be decorated with our linens and ceramics.

In this picture this was for staging and how showing purposes. Usually it has a linen and ceramics on it.

A beautiful table runner. Flowers that you pick up at Trader Joe's whenever you stop by. Or a gorgeous bowl with seasonal fruit/pumpkins/pine cones.

I'd say a large, dramatic centerpiece . . . that might not even be useable when you dine because it's too high! I wouldn't put place settings out because I wouldn't want to dust them.

I do something seasonal -- sometimes it's a runner and a bowl, sometimes a tablecloth and a couple of vases that work with it, sometimes picnic-ish placemats. Not set, but ready for action.

You asked for inspo photos - this is my longish & narrow table in my dining area adjacent to kitchen. Very informal house.. We rarely use table for just ourselves as we prefer convenience of counter bar in kitchen island. I have lots of red accents so here’s my runner & arrangement of wine corks, grapes & artichokes. This is basis of my earlier suggestion since it works for me!

A couple of candles in nice holders.

I use a table runner, a centerpiece (large vase, bowel, tureen, etc.) and candlesticks on either side of the centerpiece. I change it out periodically according to whim and season.

I have different looks for different seasons. This summer it was dolphin candle holders and a basket with glass floats in it. Fall I have some candle holders with a fall theme--greenery, pinecones, acorns, etc. and winter is red cardinals and I have a couple of other vases with seasonal flowers. I also always have a fruit bowl. My kitchen is small so that's where I keep my fruit--apples, bananas, pears, oranges, an occasional avocado, etc. I have a cornucopia for Thanksgiving but the vegetables are fake. It's fun though. I have a big china cabinet with closed cupboards on the bottom, that's where I store the stuff off-season.

We have a long skinny metal dish. That’s all

Mine is super simple, just a runner and a large bowl with wood beads in it.

Ephma in another post you showed your kitchen pulls. What brand and style were they?

They are Rejuvenation Massey pulls in ORB. We have some that are 4” and some that are 8”.

I like Maxwell Pearl Round Easy-Clean Placemat from Crate and Barrel.

and centerpiece decor from Amazon

and wooden tray