Submit URLs to google in three steps:
Submitting of URLs to google is very easy. It helps google to list your website. Google has provided many tools for webmasters to make their website visible. To start with a submission of URLs, list them on a paper with a list.
step 1:
prepare your list from categories, posts, pages or tags example-
1. https://techsearchonline.com/category/lets-make-money-online/
2. https://techsearchonline.com/category/new-tech/
3. https://techsearchonline.com/submit-url-google/
step 2: log in to google URL submit page
step 3:
submit them one by one.

It is very easy to submit any URL to google.
note: Google doesn’t add all submitted URLs and index them.Google does not guarantee about when your submitted URL will be indexed or not.
Also, check how to submit a sitemap to google.