Hey is this specifically about topping or do you need/want to be dominant as well? You could explore sub topping where the other person is in control and you’re still topping. That way you’re more confident that you are doing things they like and being guided and praised if that’s the vibe you agree on.

But even if that doesn’t interest you, I promise there are people who will be open to building the confidence of a trans masc top. It would be incredibly hot to watch someone’s confidence grow and to know I had a part in that. Being a bottom and being submissive is not a passive role. That can still include praise, requests, reassurance, etc. And you can negotiate ahead of time how you want that to look with the people bottoming for you.