I chose a rainbow boa for my first snake and now have a king too, with plans to add a dwarf boa and royal sometime this year. If there is a particular type of snake you love, I'd say go down that route. A lot of people on here also recommend this as lots of people buy corn snakes or royals then apparently become bored with them as they are not the species that that person really wanted in the first place. My rainbow boa was I think about 3 years old when I got him and the retailer wasn't sure how old my king snake is but I'd guess around 18 months, I've had no problems handling or feeding mine.
What species do you like best? If it's a species that's considered differcult to keep perhaps we can suggest a similar but more hardy species.
3x Black cats 1x Horsfield tortoise
2x Dwarf Lop bunnies 1x Caatinga rainbow boa
4x Chinchillas 1x Fire bellied newt
2x Zebra finches 1x Firebellied toad
1x Thayer's king snake 1x Albino boa
1x Short tailed Opossum 1x Lutino Parrotlet