In the end it's about what we can put up with. I like bellows hood, and many can be adapted to other brands, so are direct fit since most mount by a ring that is made for a specific filter thread.
In MF Bronica has bellows hood for each line 645,66,67. They may seem large at first, but once collapsed they take on an L shape with rather thin legs. And one fits just about any lens and arguably provides superior shading properties. It's not for every bag in use, but I don't find them as cumbersome as they seem at first sight.
I know this is not what OP is asking for. But, fixing a rubber hood with collapsing capability retained ? I don't think that is possible for any length of time without resorting to an expensive refurbishing process.
In MF Bronica has bellows hood for each line 645,66,67. They may seem large at first, but once collapsed they take on an L shape with rather thin legs. And one fits just about any lens and arguably provides superior shading properties. It's not for every bag in use, but I don't find them as cumbersome as they seem at first sight.
I know this is not what OP is asking for. But, fixing a rubber hood with collapsing capability retained ? I don't think that is possible for any length of time without resorting to an expensive refurbishing process.