This is not what you want to hear but I would say get an adult female G. rosea (because they are cheap as adults) and buy it from a good breeder. When you do get it specifically request that you want a nice, calm and laid back rosey. Adults are usually set in it's ways already. You can buy any recommened starter T as an adult but the rose hair is probably the cheapest. Any sling that you buy has the potential to change behaviors after a molt. Your once laid back T could all of a sudden start throwing up threat displays after a molt for some odd reason. Your once non hair kicker could all of a sudden become a big hair kicker after a molt. Possibly they could switch back after a later molt or just stay that way for the remainder of their years. It definitely does not always happen but just making you aware of it.
Grammostola pulchripes - They get big and are generally really friendly. Can kick hairs though (I've seen big hair kickers and some that didn't kick at all).
Grammostola albopilosum - A nice curly hair
Grammostola pulchra - Very nice looking jet black but pricey.
Brachypelma smithi - Generally friendly but can be big hair kickers.
Brachypelma emilia - Same as above.
For an aboreal you can get an Avicularia avicularia. They are generally really laid back but you need more height then floor space with them. They do not kick hairs but they do have U hairs and will rub their butts on you if they want to use them. They can also shoot poop as a defense.
I just named a few off the top of my head. Someone who had a fear of spiders might be able to chime in to offer what they did to over come their fears to help you also....