I am new developing custom modules in magento and I am working CE 2.1. So I need some help with the basic steps. Where I can find Documentarios and Examples for develop custom modules? what is the best PHP framework that fit to magento for develop custom modules?
Here is magento official documentation for creating a module
here something other link for creating the module
here is a simple module code
by using this link u can try to do
In addition to the original Magento documentation, check these links:
There you can find many useful resources and articles concerning Magento 2 development. Additionally, we recommend you to sign up for http://magento.stackexchange.com/ (if you hasn't done this yet). You can find a lot of answers for frequently asked questions.