Pyharm-like autocomplete in Vim

Is there a way to make Vim autocomplete behave like Pycharms?

I tried YouCompleteMe, but it doesn't show every possible function and variable after typing the first letter. I find this extremely useful because I am still a beginner.

I am looking for the same for C ++. The reason I don't want to use Pycharm and Clion is because of the hardware limitations, and I really like Vim.

Can this be done somehow?