It's kindof hard to make suggestions to someone that you really do not know. "This" is such a wide open arena of activities.
What I might find completely palatable with doing, you might become sick to your stomach. Or vise versa. So that is why people haven't been just jumping in on this topic to make suggestions.
I would suggest getting a book of activities or reading fetlife and seeing all of the different groups. You may like giving a little pain but you're probably not going to want to nail someone to a cross.
But there are sites that actually feature that. So again, sometimes a little self exploration goes a long way. Or it has for me.
And men are easy. If you wish to try something with them all that you have to do is ask. They're generally game towards experimenting. Well, it might be according to what type of experimenting!!!
Good luck!
Elisabeth