Definitely go for a rose hair, they are pretty docile and are really easy to take care of.
We got ours as a young sling and we had her in a small tuberware container with coconut substrate and a little bottle cap as a water dish. Now that she's over a year old we have her in a 10 gallon tank with a metal mesh lid so that she doesn't get out (they can climb glass), with some sticks and a thick layer of coconut substrate again (they will burrow). No added heat is really necessary but we do have a heat lamp for cold nights during the winter just in case. Just don't put it near a window where it will get too cold as these guys are desert arachnids.
As for food, we feed her mealworms or crickets 2-3 times a week (1 per offering). Although these guys can cut back on food for months at a time as well which is nothing to worry about. Especially common when they are going to molt. As for water, make sure you get a dish that isn't too deep as they have the possibility of getting stuck and drowning.
I'm sure there are other tarantula owners here that can input anything else
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