My 2016 Prius can transport a bike with 2 seats folded, so 3 seats are left. The Prius V might be able to hold a bike with no seats folded. Car and Driver said about the Prius V, "A full-size men's mountain bike slid in with no trouble once the front wheel was removed." The Prius V is a midsize wagon, smaller than an Outback or Golf Sportwagen. Definitely beats the cargo capacity of a regular Prius with the second row folded. They also make bike racks for the regular Prius and Prius V.
If you don't want to remove the wheel (no one does), the Toyota RAV4 Hybrid can fit two bikes in the trunk at the same time with the rear seats still up. 5 people and two bikes. Get the 2018 RAV4 Hybrid XLE with the Hybrid Convenience Package which gives you blind spot monitoring, rear cross traffic alert, power liftgate, and a better infotainment system with navigation. It's a good value, very reliable, and comfortable.