Don't open small channels like 200K-500K. And do not RBF the transaction.

Get 2-3 channels of 1M sats each(with different peers) this will last you for long time(depending how much you will zap/get zapped). Don't open channels with random people, get good peers, @DarthCoin has a guide(obviously) about that: https://github.com/ZeusLN/zeus/discussions/2265

If you are only opening one, id go for Olympus Zeus maybe. The more diverse your channels/peers are, the less you will pay in fees and the less chance for payment failures.

After you opened the channels, you will have no inbound liquidity, you will have to transfer some sats to Coinos.io(or someone else) to free up inbound liquidity, you can swap them back for onchain sats or leave them on Coinos for future needs, your choice.