Problems adding Contribution form to a WP page
Disable all of your plugins (except CiviCRM) and try it again. If you can now see the Civi options, you have a couple of options: a. Set up your page, reactivate your plugins and go on with life, b. Reactivate the plugins one by one to see which is the issue.


If that does not work:


Switch to a WP basic theme like Twenty Seventeen or Twenty Sixteen and try the page create again. If you can see the Civi options, I would setup the page, switch back to your theme of choice. Just switch to a basic theme when you need to see the options and then back to your theme for usage.


If you do not want to mess with either above,


Under Contributions > Manage Contribution Pages > Select the page you want > Links > Live. This will give you a link that ends in id=#  Below is an example of Civi shortcode. Replace the 2 in the shortcode below with the id# from your live link and paste it to your WP page.
[civicrm component="contribution" id="2" mode="live" hijack="0"]