Fellow straight male here that loves anal and prosate fun! Honestly, go for it. When I first started a few years ago I was amazed how much more intense it makes pleasure and penile orgasms.
Took a few tries to get used to it, and you have to kind of rewire your brain to accepting the new sensations of pleasure, because at first all you’ll probably think that it makes you feel like you need to pee!
I’d reccomend a toy that is specifically for prostate play, rather then just a butt plug. That way you can use it to stroke the prostate more easily. Start slow at first, use plenty of anal lube, listen to your body and feel how it enhances pleasure, even all the way up to the tip of your penis, not just the prostate itself. Explore and have fun!
Edit: You just reminded me to post a review from a few months ago of the Lovehoney Ignite Prostate Massager