If you miss the old-school customizable Yahoo start page, you might want to take a look at Protopage.
I want a new start page

We help a reader pick a new start page to replace Yahoo.
Set Safari Start Page

Learn how to set your start page in Mac Safari browser.
Customize your Google start page

Give your Google start page a brand new look.
Customize Edge homepage

Edge start page too cluttered? Learn how to customize it.
Change your start page in Edge

How to change the Start page in Microsoft Edge.
Bing, Chromium, Firefox… Oh My!
A mysterious appearing browser program, a disappearing search engine. Are they related?