Substitute for petai?

I cooked sambal tumis bilis the other day and thought it would be nice to have petai jeruk to go with it. My husband was having his sandwich and a bottle of pickled olives opposite me. He offered me some olives, like pushed the bottle across the table. I then had some and man! it tasted as good as petai jeruk with the sambal!. On the plus side is, the olives don't leave that peculiar smell in the bathroom.