I am sure you can get soup bowls. I seem to remember my mother telling me when I was very young ( 1950s ?) that she or a neighbour had had a pressure cooker explode and one has to be very careful, but I bet they have improved since then.
I have the opposite problem. I am looking for decent sized pasta bowls that are deep. Nearly ended up buying fruit bowls!!!
Maybe cause I'm greedy but I want a big bowl of pasta not a few strands of spaghetti in a cereal bowl.
I had to buy some bowls last week - I got them from Amazon and they are quite large so they can be carried without spillage. I wouldn’t say they’re soup bowls but they are nice and deep.
On your other question modern pressure cookers will not explode, providing you don't cover the pressure relief valve. Very economical way of cooking and retaining flavour, far better than boiling veg.