Can anyone point me in the right direction of a trusted, "standard" solidity contract that only has features for a marketing tax on buys/sells and a liquidity tax on buys/sells?

I am trying to figure out what went wrong with my contract, and this would be really helpful cross-reference

I am confused because the contract I am using was functioning as expected in test environment (Rinkeby), but did not allow public wallets to sell without disabling taxes on main net