Back when I used to have to tuck (before surgery) I'd get thongs which were purposely made for tucking. You can find them online. These fit tight made of cotton/poly and push all your stuff back and up. I was not very big and these made me nice and smooth in front and i could even wear a swim suit and no one would know.
One thing I'd caution against if you're like me would be satin, silk or even very soft nylon. Those presented a problem for me because I loved how they felt against my skin so much that i'd get hard sliding them up. Sometimes i'd get hard even before i reached in the drawer for them. Like I said, everyone is different but if you're like this, save yourself time by saving the sensual panties for sexy time 