What do you want to achieve?
Do you want to have all your addresses in a single wallet? If so, you should import your private keys instead of the your seed phrases.
nice question
actually a relative passed away months ago.
I'm trying to recover his funds. the only copy of seed phrase miss 2 words.
long story short, we have like 35.000 possible seed phrase combinations(with some extra filtering)
now I need to check these seeds to see which one contain balance of which coin.
There is no clue about which coins they had bought? I'm not very proficient with altcoins; they all use the same alphpabet and same number of words like Bitcoin wallets? Maybe 2 words are not missing, but it's some altcoin that uses 10 or 22 word seed phrases? I guess that could be a hint towards which cryptocurrency you're looking to recover.
Otherwise, I guess you would need to run FinderOuter or btcrecover, but modify it to work with other coins and run it once per coin. That's how I would do it.