Hybrid / Alternative Platforms
Though most DEXs can be classified as either as AMM or order book, a growing number of platforms are beginning to merge the concepts of both these types to create new, hybrid DEXs. This is mostly done to enable additional functionality such as allowing users to seamlessly trade their assets across multiple blockchains etc.
An interesting example for such a hybrid approach is Raydium. In addition, a noteworthy phenomenon has been the rise of DEX aggregators, which allow users to search for prices and liquidity across multiple DEXs. As the name implies, they aggregate liquidity from different DEXs to provide the users with the best execution price available within the shortest time, while lowering
the level of slippage on large orders and optimizing fees.