I grow elephant garlic (e g) more for entertainment than anything. Like you, I find it a poor replacement for garlic, but it has its uses for me.
A few hints on how I id elephant garlic aside from the massive bulb and clove size:
If you grow hardneck garlic, some of these identifiers won't be much help...
They grow around the central stalk, like a hardneck. I grow softneck, so that's always a good indication for me
The cloves are generally a similar size, with none of the central skinny cloves of softneck
Softneck doesn't flower, eg does
The cloves usually have a single thick 'shell' of skin, rather than garlic's flaky layers
There's a distinct yellow/brown shade to the skin unlike any garlic I've seen.
E g produces 'pups'- small, uniform cloves- that detach from the bulb
Its flavour reflects its leek family, and like leeks, I find it unpleasant raw.
I haven't tried fermenting it. I love fermented garlic, so that could work for me!
I like roasting up big trays of root-type veges: carrots, potatoes, parsnips, celeriac, salsify, beetroot, sweet potato, JAs...with onion, gotta be onion,
I throw a bunch of unpeeled e g cloves and winter herbs like rosemary in half way through.
Eat with goats cheese and rocket
I've always heard that as with hardneck, it's best to cut the scape to make the plant focus on the bulb. Then again it's so prolific and the insects love it so much, I usually leave a couple to flower.