Here is the steps and hoping this will help your request
Setup --> Build --> Customize --> Home -->
Firtst you need to create a Home Page Componentt --> You can select text/html/visualforce based on your requirement.
Once Home Page Component is created then click on Home Page layouts --> Click on new now all Standard and Custom Home Page components will be visible from there you have to select recently created one and save it.
If you want to assign to any specific profiles click on Page Layout Assignment and assign itto that profile.
Here is the steps and hoping this will help your request
Setup --> Build --> Customize --> Home -->
Firtst you need to create a Home Page Componentt --> You can select text/html/visualforce based on your requirement.
Once Home Page Component is created then click on Home Page layouts --> Click on new now all Standard and Custom Home Page components will be visible from there you have to select recently created one and save it.
If you want to assign to any specific profiles click on Page Layout Assignment and assign itto that profile.
Hope this helps.
Thanks