Meta Descriptions, Keyword Research, Good Content, URL Structure, Heading Tags (H1, H2, H3, H4, etc.), Internal Linking, and Responsive Design are some of the best on-page optimization activities.
Create Metadata to use your keywords do not use too many keywords in your description.
Use focus keyword in your H1
SEO body content
Image optimization
internal linking
page load time
These are some of the most on-page activities that help to increase SEO ranking:
Title Tag
Meta Description
Header Tags
Keyword Cannibalization
Content Audit
Image Optimization