Could you explain what is it you're trying to achieve exactly? Have you considered simply switching to another chain? You could take all of the USDT you have, deposit it to a CEX, and then withdraw it back (probably paying 1 or 2 USDT as a fixed fee) using another chain. You can then continue to do these transfers pay cheaper fees.
I have around 10–15 wallets, each one with about 20–25 USDT. I want to consolidate all of this into one single wallet.
The problem is that network fees increased, and now each transfer costs around 0.6–0.7 USDT, which makes it expensive to move everything individually.
That’s why I’m looking for the best and cheapest way to move all the funds into one digital wallet.