Fanarttv.com has a pretty good selection of logos and other elements for discs and such. As far as programs, gimp is free and can do pretty much anything in terms of design you will need.
That’s a dangerous website that will hijack your browser.
edited for being snarky…was in a bad mood today, sorry about that
Yeah, sorry about getting the wrong website in there…I was half asleep and trying post, never a good idea. Thankfully the OP found the right place despite my error.