Can you recommend a guitar strap?

Judging from images, it looks like this guitar model also has a strap button on the heel of the guitar in addition to the one at the lower bout. In other words, you can use any guitar strap you like.

Guitar straps is about personal taste and preferences and they can typically, easily be shortened or made longer by adjustments on the strap. Just to make sure (in case this guitar does not have a strap button at the heel), you can get a strap with a lace tied to one end. This lace can then be tied around the head of the guitar. Later on, you can have a guitar tech fitting a strap button for you - this is very easy, quick and cheap to get fixed.

If you don't find a strap with a lace (they are everywhere really), you can use a regular shoelace or something similar to tie around the head ... if needed :-)

Leather straps are of course very nice, just make sure they are adjustable enough.

Considering that's a pretty plywood guitar I wouldn't go too crazy with the strap, Just a simple nylon strap type will do, if it doesn't have a heal button then a cheap shoe string will suffice for a traditional acoustic strap, which is strung under the strings behind the nut and through the button hole of the strap, Its not exactly rocket science, Go for a Jim Dunlop, there a local company in my neck of the woods, about 5 miles from where I live, and I like to keep my money local

Any of those straps would be fine although you might need to have a strap button installed on the treble side of the heel of the neck. That's a quick and inexpensive fix.