Maybe if we search for this information, it will be even simpler to go to the main website of the Solana coin, but I'm also sure that the website shows that Serum and Raydium are the ones who have the most power for DEX from Solana coins.
I'm also sure that Solana has a lot of DEX but the most valuable, valuable and have more community are Serum and Raydium, but this is just my opinion and I hope that in this forum it remains DWYOR to choose DEX from Solana coins.