Any yaoi with older man in their 40s ?!? Thx in advencee

nanao bohra's stuff is usually that age range

Man of tango has the seme that's at least 40, and the ukes at least mid 30s

I have Oyaji tags, may help..
http://www.mangago.zone/people/tag/2337/Oyaji+Uke/
http://www.mangago.zone/people/tag/2337/Oyaji+Seme/

http://www.mangago.zone/read-manga/kokoro_kanda_neko/