It was a question that's been asked months ago but it's very timely. Using BTC now for transactions will be costing you a lot of fees and might be the same for ETH because sometimes fees there are also that much. For LTC, I've used it and it still has cheap fees at all.
If there are other networks like the TRC20, matic sol, and many others. Wherever you can save fees, use them at this moment but eventually for the fees of Bitcoin, I think that they'll be very back soon for being cheap again.
I'm hopeful too about btc transaction fees to come back to being normal again, because it remains the preferred choice, I guess that this lingering congestion is because of the events that concerns Bitcoin that we're expecting next year and investors are flooding it's network for transactions. Litecoin, usage has been unanimously agreed that it has a cheaper fees compared to btc and eth that were preferreble, so as it is now Litecoin, has carried the day in terms of it's cheaper fees, until btc and eth networks stabilizes.
The disruption or congestion in the network is caused by ordinals and inscriptions
For the uninitiated, Ordinal Inscriptions are a type of digital asset on the blockchain network. While comparable to NFTs, these started with being engraved onto individual satoshis (SATS), the smallest units of Bitcoin (BTC)...
This sudden spike in ordinal inscriptions increased the load on blockchain networks, causing problems.
https://coinchapter.com/ordinal-inscriptions-wreak-havoc-on-blockchain-networks/The blockchain should have been solely for transactions but because of these inscriptions there's a 20% surge in transactions and it will even go higher, some developers are working to fix this issue like what Cronos chain is doing.
To face these challenges, blockchain networks are now having to innovate to curtail the surge in traffic. For example, last week, Cronos activated dynamic transaction fees that change with transaction volume to withstand traffic spikes more effectively.
Right now the preferable alternates for Bitcoin are Litecoin and Dogecoin, but many networks and companies adopt USDT, many altcoins are good alternatives right now, it's their time to shine now because of the traffic congestion in Bitcoin blockchain.