Is there a particular magazine or website or paper that you just can't live without?
No, there is not, and anyone claiming there is can readily be called ignorant of facts.
I retired from a 30 year career in the Marine Corps in September of 1989. I took it easy for a year and then started a small photography business that I shut down in 2012 at the age of 70. I am 75 now and financially I dependent, while not wealthy.
I receive a pension for military service. I receive Social Security. I have Medicare and VA benefits. Those things alone would not let me be driving my Caddy SUV or living in my $400,000 paid off house.
I have never inherited a penny. When my wife died I gave the $500,000 in benefit to my two adult children. I did not need it.
When I retired the first time I did a lot of reading about financing retirement. All reliable sources said the same thing: diversify investment. Put 1/3 in guaranteed return items like government bonds and CDs. Put 1/ into the stock market because it always gains over the long term. Put 1/6 into your residence by owning because the RE maret always grows over time. Us the last 1/6 tp try some high risk investment. If you win, you win big. If you lose, you lose small. Re the stock market unless you want to be trader, pick three mutual funds based upon ten year performance. Select funds that are diversified like technology, real estate, and blue chip or other different but major economic sectors funds.
It worked. But I stared to invest in 1990 and did so until 2102. That is 22 years not 10. You might need to consider the end date of your plan.