>>2047814
have a city bike with a baggage rack, buy a cheap bag like this, a basket or two and rubber ropes with hooks to secure stuff better
you can haul a lot of stuff

with dogs you want them in the front and obviously calm so they don't jump out

helmet you can get decent ones for cheap too but be sure it's certified

it's a lot easier in Europe I'm assuming you're American so I don't have specific advice. troll Amazon I guess