That’s true due to the small fees altcoins are usually the best for stuff like this ( minus etherium ) but doge , LTC and polygon , fees are really encouraging, and they are also fast .Like then I was using LTC and BNB to deposit in platforms and it literally save a lot of fees .
You shouldn't rule out ETH. As previously mentioned, the fees on the ETH network have decreased significantly recently, which means that now ETH has also become comfortable for making transfers, as well as deposits to Betfury or other gambling platforms. For comparison, the current gas price on the ETH network is only 1.5 gwei (about 6 cents).