Swap SOL/LTC for BTC

Hi! I’ve decided to buy a trezor.

I’m far from rich and I do everything possible to grow my bags.

Bitcoin is my main hold but I do also hold some ltc and sol. To avoid withdrawal cost of btc, would I be able to transfer sol or ltc to trezor and then convert it to btc for a cheaper price?

Thanks in advance.

Trezor is not an exchange / swap exchange, it’s a hardware wallet.

Just use something like swapspace.co and do you exchanges there. You can use any hardware wallet you like.