How can we get more coins either from staking are staking pool if we want to stake more coins means how much coins I required to stake
There is NO any difference if you Stake, from private staking or staking pool
if you stake from staking pool means you will get same coin and same rate of interest but your rewards coins will be receive soon.
if you stake coin in private staking means also you will get same rate of interest but you will receive your staking reward coins latter