How to add my bep20 token to pancakeswap

Help

Hi okay, i am working on a project called www.starcade.io. We have created our BEP 20 token with a supply on 5 billion and have allocated 1 billion to list on exchanges. We are now at the point where we want to add the first liquidity pool to pancakeswap. I know how to add the liquidity and the pairing BNB/ORBS but I am a little confused about the correct liquidity to provide in BNB and the correct amount for ORBS to supply. What is a good ratio of BNB to add so when people buy on pancaskswap it does not bring the error up saying insufficient liquidity?

Would be good if some can clear this up