Bruce talked about the Camp Maid.
Volcano Grill
This is a nice accessory. Besides its charcoal (and propane) grill features, it can enclose a 12" Dutch oven with bottom coals, providing a wind break. If you're careful, you can cook on surfaces that are not heat resistant ... though not recommended since coals always seem to inadvertently drop when rearranging them.
However, I found it to take up a large amount of space (18" x 18" x 6") even in its collapsed configuration, but use it at home when using charcoal. Something to consider if you have space for it. It weighs 22 pounds.
https://volcanogrills.com/

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Volcano makes a fiberglass cover to keep the heat in. My wife is sensitive to fiberglass and hates this, but it seems to work somewhat.

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I did mill down tabs on my 12" deep Lodge to fit better into the Volcano.

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Older non-collapsible Volcano used to make dessert. With sticky desserts, a liner keeps your Dutch oven clean.

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Fireside Outdoor Pop-Up Firepit with "Frontier Grates"
https://firesideoutdoor.com/
Fireside Outdoor makes a "Pop-Up Fire Pit". Its original intent is as a fire pit for use in areas with none. The bottom is stainless steel mesh, so fine ashes will drop through. The fire pit is 4 square feet, so reasonably large.
If you're interested, check out YouTube videos by searching "pop-up fire pit".
The metal pieces did not come well finished. I sanded sharp edges which might otherwise be dangerous during assembly.
Fireside Outdoor Pop-Up Fire Pit
The fire pit doesn't really "pop up", but can be quickly assembled within 2 minutes or so.

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The carrier encloses the potentially dirty fire pit components within a bag 30" length and 5" diameter, around 8 pounds. This isn't exactly small, but I find I can more easily stash this than, for example, a Volcano.

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Fireside Outdoor Frontier Grates
These are simply angled pieces of stainless steel to provide support for a Dutch oven. Depending on your Dutch oven size, its legs might interfere with the fixed separation of the supports, so it helps to use a steel pizza pan underneath. Also, the supports don’t provide enough distance to lift the legs clear of the mesh on the bottom. The sides of the fire pit provide a good wind break.
The fire pit is 2' square. A grill accessory can be simultaneously used to charcoal grill while cooking with a Dutch oven.

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Fireside Outdoor Ember Mat
Siliconized fiberglass will catch embers and ash, promoting fire safety and allowing ash disposal in areas where ground fires aren't allowed. Opened size is a large 68" x 60", weighs 4 pounds. Lay it out underneath your fire pit.

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