Which IDE comes with help ?

[perfringo]

It a little bit too ambiguous for me. Please define more narrowly what do you mean by 'help'.

Python have built-in help which is accessible from interactive interpreter by entering 'help'.

>>> help()

Welcome to Python 3.8's help utility!

If this is your first time using Python, you should definitely check out
the tutorial on the Internet at https://docs.python.org/3.8/tutorial/.

Enter the name of any module, keyword, or topic to get help on writing
Python programs and using Python modules.  To quit this help utility and
return to the interpreter, just type "quit".

To get a list of available modules, keywords, symbols, or topics, type
"modules", "keywords", "symbols", or "topics".  Each module also comes
with a one-line summary of what it does; to list the modules whose name
or summary contain a given string such as "spam", type "modules spam".

If help about specific function or method needed use 'help' with specific term (hit Q to exit help):

>>> help(str.join)
Help on method_descriptor:

join(self, iterable, /)
    Concatenate any number of strings.
    
    The string whose method is called is inserted in between each given string.
    The result is returned as a new string.
    
    Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs'

Regarding IDE I believe that all of them have some sort help/hinting built-in. My personal bias is toward VS Code.