This is absolutely the right forum!
If you search for pegging you will find lots of others who have had the same questions. I think the bringing it up and making sure you and your OH are on the same page is probably the hardest part. After that, start off small, maybe butt plugs or a prostate massager for you before moving on to strap ons and full pegging.
This is a fairly recent topic on bringing up the subject with your partner though it generally comes down to open conversation and ask.
And Pegging/Strap on - HELP PLS! has some good advice for getting started.
There are loads of threads to read with pegging advice though so have a search and hopefully you’ll find lots of good suggestions 