G. aureostriata(Chaco Golden Knee) - the most mellowest T I ever had, has golden stripes on their knees. Super easy to care for, no special needs.
G. rosea (Rose Hair) - The most common tarantula in the hobby. I personally don't like this one, Their colors are dull, but if you're lucky you can get one with a bright pink, shining red carapace. They also go through a fasting period which I don't like. They are probably the most easiest species to keep. If you get this one, you'll end up getting something else.
B. albopilosum (Curly Hair) - Just as easy to care for as the Chaco Golden Knee. These are also a gentle giant, for colors, they are not too exquisite being plain black but they have yellow curly hairs on their abdomen. They CAN flick hair if feel threatened though.
B.smithi (Mexican Red Knee) - Probably the most desired T in the hobby. They can be as gentle as a rosie, but they can be a bit of a hair flicker, harmless non the less. As for color, it has a pattern of red.. well orange and black markings going down their legs. You should look them up. Care may be a bit different from the rest, but it won't be anything difficult.
A. seemani (Stripe Knee) - A really easy to care for tarantula, but it likes to burrow a lot. Well most T's burrow in general, but this one digs for gold. A pretty docile T, but it's very shy at times and likes to run and hide. For color, it sometimes has a blue-ish tint to it, mostly brown or black with tanish stripes on its knees.
A. avicularia & A. versicolor (Pink Toe) - These are arboreal species which means that the need an enclosure with height instead of ground space. They also require more humidity than the ones listed above. These are very docile T's, but can be a little panicky and will fling poop as a defense. They like to create nests by weaving blankets of web in the corner of the enclosure. A. avicularia will most of the time be black and have pink toes. A. versicolor is a very beautiful avic, metallic blue as spiderlings and as they grow up they can sometimes be blue with a greenish tint and a crimson adomen. I'd say you look them up too.
Well there's tons more out there but here are the few basic beginner T's. I must also warn you that every T has it's own personality and mood swings. Even the nicest of G. rosea's can be a reincarnation of the Devil. You have kids so the ones I listed above are great for kids.
Here is one of my personal favorite that I keep. An P. murinus(Usambara Orange Baboon Tarantula) aka OBT. One of the meanest devils the Tarantula hobby can offer, but mine is icey cool. I call him Kamikaze, but friends call him... Satan's Palm.