I have referred all Event's list
https://cyrillschumacher.com/magento2-list-of-all-dispatched-events/
https://www.mageplaza.com/magento-2-module-development/magento-2-events.html
I have below issue
Magento 2: How to show/hide payment method on basis of amount
Can i manage through Event Observer? If Yes then what will be name? I'm not able to find on above links
<event name="controller_action_predispatch_XXXX_XXX_index">
<observer name="check_checkout_page" instance="Custom\Module\Observer\MyObserver" />
</event>
When user on http://localhost/magento2/checkout/ before it loads payment method i would like to call my observer.