Those playpens may not work for a large breed pup, they can knock them over.
I assume you are talking about an indoor solution for when you are out? If so, consider something like this https://www.chewy.com/midwest-woodwire-mesh-pet-gate-44/dp/45657
Gate the pup in a puppy proofed small room, get the tallest one you can, they can jump pretty high and get it to fall over. Always provide a bowl of fresh water.
For outdoor containment, if you can’t have a fenced in yard, then consider a kennel containment https://www.bing.com/search?q=large+outdoor+dog+kennels&FORM=QSRE5
Never leave them unattended outside, even when contained, otherwise just take them outside on leash as often as possible.
