Raw lobster

Raw Lobster is a free-to-play item on the OSRS Grand Exchange in the food category.

In-game examine text: "I should try cooking this."

It has a Grand Exchange buy limit of 15,000 every four hours, a high alchemy value of 42 gp, and item ID 377.

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Raw Lobster shows an active flip setup with a margin of +5 gp and 508,507 trades over the last 24 hours.

At the buy limit of 15,000 every four hours, max profit per cycle is about 75.0k gp — high margin with healthy liquidity.