Best exchange people in 3rd world countries use?

Fairly new to bitcoin and had to learn the hard way how to effectively DCA. First bought in Exodus, Binance, then ultimately in Strike. However, I don’t like that this exchange don’t have any 2FA in it.

Any recommendations with the lowest fees?

Also how much do you keep in the exchange before you send it to your hardware wallet? I didn’t knew this before but apparently sending small amounts from exchange > cold wallet increases your fees long term.

I feel like the fees and UTXO don’t get said enough, they just say bitcoin is the future in return people go in in not the most effective way and mismanage how they invest.