There is a simple answer to your question.
All of them.
You're asking which gods and goddesses work with magick? Simply put, they all do.
Finding a deity to worship should not be a matter of trying to find someone to help you with magick. You can work magick with NO religion at all. If you choose to ask the aid of a deity, that is your choice. You don't need to do so to perform magick. Magick is in YOU.
If you have interest in any particular deity, a better place to start your research would be Google or Wikipedia. From there you can go to your local library. AFTER you do that, you will have a better idea of what that particular deity specializes in.
90% of magick is research. Learn how to do it yourself. It's not hard. I have a lot of luck simply typing the name of a deity into Google and hitting "search"
Obviously you want to avoid anything that looks untrustworthy, but that is true of anything you read online. This is why I suggest following up your internet research with some library work.
Yes folks. Magick is work. It's difficult and it's sometimes boring. Often I have to read through 5-6 dull books before I find anything of interest. Read THROUGH, not skim. Sometimes one book will have JUST ONE small piece of the information I want, buried in a lot of other stuff.
READ people!!! It's the key to knowledge.
This is the best advice you will receive on this Damionkie. Don't ask other people for their opinions on a deity till you've learned about them for yourself. That way you can listen to everyone's opinion, but form your OWN based on lore you have found YOURSELF. It's the only way to know for sure that someone's not giving you bad information.
I hope you take this to heart. Best wishes.