Here are some popular decentralized exchange (DEX) aggregators that were well-regarded as of that time:
1inch:
1inch is known for finding the best prices across multiple decentralized exchanges. It splits orders among various DEXs to optimize for lower slippage.
Link -
2 . Kyber is a decentralized liquidity protocol that aggregates liquidity from various sources to provide better rates. It supports a wide range of tokens.
Link -
https://kyberswap.com/swap/optimism/eth-to-usdc.e
3 . Balancer is a liquidity aggregator and automated portfolio manager that allows users to provide liquidity to different pools and earn fees.
Link -
4 . SushiSwap is a decentralized exchange that offers not only swapping but also yield farming and staking. Some aggregators may include SushiSwap liquidity.
Link -
5 . Dodo is a decentralized exchange that utilizes Proactive Market Making (PMM) algorithms to provide better liquidity.
Link -
6 . Curve is known for optimized stablecoin trading. It focuses on low slippage and is commonly used for trading stablecoins.
Link -
https://curve.fi/#/ethereum/swap
7 . Bancor is a decentralized liquidity network that allows users to provide liquidity to different pools and earn fees.
Link -
https://app.bancor.network/trade
REQUIRED LINKS :-
For iOS App:- https://apps.apple.com/us/app/1inch-defi-wallet/id1546049391
For the Android App:- https://play.google.com/store/apps/details?id=io.oneinch.android&pli=1
Desktop version of the 1inch App:- https://1inch.io