Older married guys are easy to seduce if you can hang out with them 1 on 1. I prefer spontaneous real life encounters to planned meetups through apps.
You just need 3 things to happen, the order is not important.
1) You need to get them horny
2) You need to get them to say out loud that their wives are not giving them blowjobs (probably not much else either)
3) You need to let them know that you like to suck cock
Then you just go with it according to the vibe. Some guys are dominant so they whip out their cocks, maybe even walk in front of you and hold their cocks towards your mouth. Some guys are insecure so they'll ask endless questions about everything and at some point you'll just have to go "If you're asking whether I would suck you off, yeah, I would". With some guys you just know you can kneel between their legs, open their pants and start sucking without saying a word and they will let it happen.