That depends on exactly what you want to manage (and which version of Chrome).
Under Version 69, Chrome menu, Settings, Passwords - under the People section, which is the first Section on the Settings Page.
Passwords themselves are now managed under one's Google Account at https://passwords.google.com
Brian - Windows 10 Home, 64-Bit, Version 1803, Build 17134
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
~ Saul Bellow, To Jerusalem and Back