Good luck finding a well rated bond! Best I could find was a Baa3/BBB- that paid 4.5%.
Well rated and bond shouldn't be used in the same sentence.
Seeing as how we're in full hijack mode now...
I concede a well rated 10% coupon is nigh impossible. On the other hand, speculative grade with 10% YTM backed up by hefty due diligence...that's something else.
Well rated and bond? Umm... if nothing else you can go buy treasuries...

. They're literally off the scale.