I've found it not easy to find much younger guys. I've had, but that was mostly some years after soviet collapse. Than many young guys did whatever for a foreign trip. They needed an official invitation to get a visa. So I've had really str8 guys to visit and OK with also doing some sex together. Apart from sex is pleasant, it's very interesting to meet over the age barrier. There's so mush you can learn from each other. I live on the countryside on an Island and we've had much fun doing things together and many WOW's. It's been city guys not so used to country living. We've done different things depending of interests. One very nice guy, str8, I even got very warm feelings for, helped me out at work for one month. After work we used to go fishing. Then sauna, shower and some mutual jo.
I've tried Silverdaddies without success. Only some guy close to my own age has written. Last fall I had a 23 y.o. guy visiting. We were not the best match, but we had a good time together. Would be happy to have a young best friend to meet now and then when possible. Anyway, I've sometimes quite actively searched for a young guy, but really not much of success. No domestic guys. The only guys who used to show interest are too far away and too expensive to travel. Would be fun to host a young guy and establish a longterm friendship.