[al2o3cr]

There are, and they'd make fairly poor paperweights because they aren't typically very heavy - the intent is to use friction with the ground to keep the door from moving, rather than just weight. For instance:

https://www.homedepot.com/p/Everbilt-Heavy-Duty-Walnut-Brown...

[bombcar]

There are heavy ones (cast iron doorstop will find some) and they work better in certain cases.

You can also use a doorstop to wedge a door slightly open so it won't close and auto-lock.

[mikewarot]

If the door has a deadbolt as well as a lock, you can use the deadbolt to ensure that the door doesn't auto lock by locking it with the door open.