How many types of tag available in ON page SEO?

[sapnajha]

Meta Tags (includes: Tilte, keyword, description)
Alt Tags
Anchor Tags
Header Tags (H1, H2....H6)
Canonical Tags
Navigation Tags
Image Title Tags

[westbrook]

Title tag, description tag, keyword tag, heading tag, anchor tag, image tag, insert image or video tags are useful for on page.

[giftportal]

In general, there are many tags as per HTML but as an SEO we mainly focus on

Meta Tags
Header Tags
Canonical Tags
Navigation Tags
Image Title Tags

[Shivam Tripathi]

Tags are one of the important elements to be present on your site.

HTML Tag: This is the origin of the HTML document used to specify that the document is HTML.
Main Tag: The main tag is used to include all the main elements in the HTML file.
Homepage tag: This HTML is used to define the body of a document.
Title tag: This is used to define the title of an HTML document.

[sameer munje]

Meta tags (including: tilt, keyword, description)
Alt Tags
Anchor Tags
Header Tags (H2, H2 .... H2)
Official Tags
Navigation Tags
Image title tags

[RH-Calvin]

- Title tag.
- Meta description tag.
- Header tags.
- Image alt tags.
- Nofollow link tags.
- Links and anchor text tags.
- Canonical tags.