Age Gap yaoi recommendations??

hello I just want to read some yaoi w/ large age gap w still attractive daddy/grandpa vibes...you know?? I just need more Mature couple yaoi and the age gap thing is kind of hard to find. I'm done w/ high schoolers and college kids..I've read many of those.
I want more of the real good mature seme and a way younger uke...
If you know you know..pls recommend and ty ty