Getting any kind of attention to my male parts is usually a turn off for me when making love (which must sound strange for anyone who hasn't felt dysphoria before).
Coping wise I discovered by accident that it's worlds better when he gives attention instead to my mons pubis, like deep massaging and caressing, especially since the effects of HRT. You can hide the extra parts behind your legs if you start to feel dysphoric and it's really nice.
But whatever the strategy of course it's soo important that your partner knows that you don't need or want certain attention and why.