Depending upon where you live, and the fire regulations in your area (which you will need to check on before starting your project), consider these options.
When I lived in the suburbs once, I had a simple fire ring, and it was just as the name implies; a round metal ring open at the top and bottom. However, I got a lot of enjoyment from having it. Many pleasant evenings were spent in my back yard.
When I lived in the country and had more acreage, I purchased concrete blocks; placed them in a circle about 8 or 10 foot in diameter, and made them 2 high, to be used as seating. My daughter, her family and I had weiner roasts and marshmallows on many cool evenings. So much fun!
When my daughter and son-in-law had there new home built on several acres, they improved upon my fire pit. They had access to woods, and many fallen pine trees. He cut smaller logs, with a chain saw, for the supports, and cut notches out to fit in a longer log for the seat, placing them about 3 feet apart on two support logs. We had many wonderful bon fires during Thanksgiving and Christmas when I visited them.
But, the idea is, you have many options. If you are cursed (or blessed) with large rocks where you live, use them to circle the fire pit.
Dig a 2 foot round hole and place your wood in it.
Always be sure to never leave a fire unattended.
Never let children play with fire
Check with the local authorities for fire regulations. Usually they will say that if the fire is self-contained, there should be no problem.
Keep a hose near by, just in case.