There are many teams who are hosting GUIs on Serum DEX markets; some have significantly customized the experience. Below is a list of options!
Bonfida Serum DEX: https://bonfida.com/dex
Cryptocurrencies.Ai DEX: https://dex.cryptocurrencies.ai/
Serum Today: https://serum.today
Serum Pro: https://serumpro.org
Serum Folkvang.io: https://serum-mirror.folkvang.io
Project Serum DEX: https://dex.projectserum.com
Tech.Ed Training: https://serum.techedtraining.com/
Santosha Exchange: https://exchange.santosha.digital
Pangea DEX https://pangeadex.com/
Viralic DEX: https://dex.viralic.io
Ourord DEX: https://dex.ourord.com
TradeOnSerum DEX: https://www.tradeonserum.com/
YMAX Finance DEX: https://ymax.finance/
SSDEX.XYZ DEX: https://ssdex.xyz/
CryptoStarkWolf DEX: https://serum-dex.cryptostarkwolf.com/
In girum imus nocte et consumimur igni DEX : https://ingirumimusnocteetconsumimurigni.io/#/
Bonfida Swap: https://swap.bonfida.com
Serum Swap: http://swap.projectserum.com/
Serum Swap Folkvang.io https://serum-swap.folkvang.io/
CryptoStarkWolf Swap: https://serum-swap.cryptostarkwolf.com/
Want to help support the Serum ecosystem? Host a GUI and get a fraction of the fees!
None of the DEXes mentioned above are vetted by Project Serum or Serum Academy. Use at your own risk.