There are many new exchanges available today that could replace UNISWAP like TOMOCHAIN's tomodex, KOMODO's atomic swap, Solana's SERUM DEX, and a few more coming in the future. They provide good service and have quite a high volume of transactions and are of particular interest to the community.
Stakenet may be a new project with a great idea but it needs a specific product with strong community interest. So far I have just learned about this project. This will hardly guarantee their success.