You can try various screener such as the one from yahoo and go to Purchasing & Fees select no load http://screen.yahoo.com/funds.html
Alternatively, you can also try many brokerage screener or morningstar fund screener for more details research.
Though, if you need deep analysis, you will need to do more research on your own. Let me know if you have any specific no load fund that you are interested. Some of the American Funds have mutual funds that doesn't have any load and lower expense fees.
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