I built a round one out of pressure treated pine that the plans came from a local lumber yard. Gave it away and it still is in use today. But try surfing “Google Images” not necessarily for plans, but for tables. Then when ya find something ya really like, design it to fit your needs! Tables are really easy to build. Just remember though that only certain woods are suitable for direct sunlight and weather. Same as for tiles and finishes. I built a grill table that lasted until the grill finally rusted out! The new grill wouldn’t fit so my sister-in-law wrecked out the table!
When you’ve found a pic, post it here and we’ll help ya design the thing as well as give you advice on what finish and wood to use. Also let us know if the table will be exposed to the weather.
-- Bob Vila would be so proud of you!