Yup I like my seed signer. Pretty high up the list.
So why don't you just execute a 3of3 where each seed is generated using a unique methodology.
1. Cut up bip39 word list into 2048 pieces, mix well, and select one by one until you got 23words picked at complete random, using one of your capable devices to generate the 24th word.
2. 100 dice rolls.
3. SeedSigner camera RNG seed generator
4. RNG on Trezor, Foundation, etc..
#4 can be split into multiple as each RNG behaves a bit differently.
You have many options here.
1. Cut up bip39 word list into 2048 pieces, mix well, and select one by one until you got 23words picked at complete random, using one of your capable devices to generate the 24th word.
2. 100 dice rolls.
3. SeedSigner camera RNG seed generator
4. RNG on Trezor, Foundation, etc..
#4 can be split into multiple as each RNG behaves a bit differently.
You have many options here.
1