Perhaps you should start one.
The whole idea of DIY is DIY.
preumably it started because people could not afford professional trades peopl, so they went to the hardware shop to get some suff to see if they could do it, hence diy.
Now i may be wrong, but i dont think you will find such a place because diy covers every trade (almost) so the coures would have to be umpteen years long (assuming at weekends only)
think about it.
you can diy most things for the home , so what would they teach?
electrical.
today how to fit a plug, next time how to wire a switch, how to wire two swithes, you get my point? where would they stop, and that is only electrical
also bear in mind you may find fitting a plug easy, some people do not have a clue.