Lab mix for sure. I just got two males that size about 2 years ago. I’m now up to 40 lbs dog food per week. This is my 4th lab or lab mix pair. They take a while to “grow up,” but they have great, happy dispositions, very strong and loyal, good with kids and good watch dogs. They’re stubborn, so a little (at least) training is advised. They should always sit on command at the very least.
My husband did some work for a man whose wife is a dog trainer. He wants to go that route. I'll work with them myself as well.