Plz recommend some yaoi in which the uke is older

Use “older uke” tag

http://www.mangago.me/tag/Older+uke/

http://www.mangago.me/tag/older+uke/ these are the tags for that but if you're looking for something specific then I highly recommend sayonara alpha (=・ω・=)

My personal list of older uke ლ(´ڡ`ლ)

http://www.mangago.me/home/mangalist/571728/

http://www.mangago.me/read-manga/lover_boy_lezhin/?qNvb it’s my fav:) hope you will like it too!