ETFs and Index Funds

Hey y’all

So a US based friend of mine started investing during the pandemic and made decent returns. Now that he’s got a full time job he’s looking to allocate a reasonable amount of his monthly salary + gains to either passive funds or ETFs.

So I wanted to know is there a particular website, magazine or app one can check out that lists all the funds in one place by the index they track (eg. all funds which offer an S&P 500 index fund or which offer a Nasdaq fund + all details like their tracking errors etc).

1st preference would be a free service if not a paid subscription is also fine.

Looking forward to hearing from you guys.

Might try ETF.com