Have you seen the Positions of the week thread?
Mixing it up might be fun, lots of options in there.
(These are some of the poular ones)
Light bondage or even just a blindfold can be fun too.
some Massage is also a nice option (theres a shop section thats all Massage oils and stuff if you havent bumped into it yet) and is also great for edging.
Pegging is great fun (theres a ton of threads on it if you have a search), and you could definitely suggest it, but if he’s still new to anal something like a vibrating butt plug might be more fun.
Taking dildos analy is something you have to work up to.
You could try mutual masturbation or take some sexy snaps for him and post them to him beforehand maybe Or have a go at sexting him
Lingure also goes down well so thats always a nice option too.