You're most welcome. The "right pet" for one person isn't always the "right pet" for another. There's so much variety, but when you go into pet stores, you tend to see the same things over & over. There are 'marketing' reasons for that: stores make more money if what you buy eats a lot & often, if it outgrows it's cage & needs bigger expensive replacements & accessories, & if they are readily available from captive breeding.
Boa constrictors for example: they have many offspring, they grow fast (eat a lot) and need large (expensive) caging with proper (thermostatically-controlled) heat. They also get bigger & stronger than many people enjoy dealing with eventually, and can live a long time (like 30 years, with good health luck, good genes & good care). When they are large, you should not be handling them alone (for safety reasons), so all of that takes planning. While I like boas & had one (a rescue) for 12 years, I don't recommend them. (zoos turn down calls daily from people wanting to give away their huge snakes & sadly they often have nowhere to go)
Pet stores also sell many ball pythons: they're pretty, docile & don't get too big, so they are "recommended for beginners". I disagree for these reasons: they need VERY warm cages w/ proper humidity to stay healthy (not easy for beginners), and especially once they reach adulthood, can be VERY fussy eaters. If you have to go to the store & buy a rodent to feed a snake that turns it down, you end up throwing away food (and $) all the time, plus the hassle of coaxing a pet to eat. That's not "fun" to most people. I've kept a number of BP's in the past (many rescues, no longer wanted), they require patience & rarely, they have been known to live as long as 47 years!
Corn snakes are everywhere too: I highly recommend them. They are easier to care for, feed readily (on pre-killed) rodents, and stay a nice size to handle easily (or to house). They are beautiful snakes that come in many colors. The temperatures they need in their cage are more in line with normal house temperatures (about 72*), though they do need some UTH (under tank heat) in part of the cage so they can digest properly. They also like to climb & they are more active than BPs/boas which makes them interesting. I'm perhaps biased, I'm especially into rat snakes, & there's many others besides 'corn' snakes that make great (docile) pets.
These 3 are what you see most often, but just a "tip of the iceberg". Pet stores aren't necessarily the best place to buy snake either, as they are exposed to many others that aren't healthy or have mites in the 'commercial' process. Starting off with a sick snake or one with mites is no bargain. Also, some stores sell wild-caught snakes...I sure wish they didn't. Stress makes snakes more likely to have health problems (just like people).
Tarantulas are cool, I've kept one before in California. (it was a native species) I like & enjoy all sorts of animals, but getting the right pet you can live with & afford and enjoy is important. Just like breeds of dogs, so much variety.