Beginner boards for wife and I, South Beach

Hey everyone! My wife and I are finally diving in and getting our first boards. We've both done some classes and really do enjoy it, but are complete beginners. I've read many threads on this board, and others, while researching the best types of boards for us to get. I know the general rule of thumb is the longer the better (or more volume). Trying to get a board that we can both handle in and out of the water is definitely a priority, so coming to you guys for some advice.
I'll list some of my questions below as well as some info on us. I'm 5'9, 155lbs, and my wife is 5'4, 120lbs. We live on South Beach where waves are quite tame (1'-3') with some times of the year that are a bit larger. We'll also travel up north with our boards to some larger waves. Our ultimate goal is to actually learn proper technique while evolving in the sport. We'd likely hit the beach once or twice a week (so it seems i should rule out foamies).
That said:
Thanks for any guidance you can provide!
I'll list some of my questions below as well as some info on us. I'm 5'9, 155lbs, and my wife is 5'4, 120lbs. We live on South Beach where waves are quite tame (1'-3') with some times of the year that are a bit larger. We'll also travel up north with our boards to some larger waves. Our ultimate goal is to actually learn proper technique while evolving in the sport. We'd likely hit the beach once or twice a week (so it seems i should rule out foamies).
That said:
- For the surf conditions, our sizes, and our goals, what length board would you suggest? (funboard vs longboard)
- Craigslist by us has only 6' boards, is there a preferred online store for used/new boards you all recommend?
- Being our first boards, and knowing we'll likely outgrow them (hopefully not too soon) we would prefer to keep the ticket price relatively low. Are there certain makes you'd recommend?
Thanks for any guidance you can provide!