I personally have immediate access to 3 German Shepherds, 2 cats, a couple parrots, and a rather large pot bellied pig.
As for wild animals there are several coyotes in the area along with snakes, moles, squirrels, Pigeons, alligators, and rats.
Fairly nearby there is a rescue for exotic animals that has, among other things, Lions, Tigers, and bears (oh my!). Along the same lines there is an spca that has a llama, some horses, a donkey, 2 cows, a bull, chameleons, and a lot of goats. Obviously the spca has easier access to the animals.
There's also an aquarium nearby with several dolphins, including one who's the subject of a movie that's coming out this year. Also a touch tank with sea turtles, stingrays, and sea urchins. Beyond that there are a couple species of sharks and eels, but these are obviously harder to access.
In the same area is a sea bird sanctuary that is always looking for volunteers, It has, among other things, Pelicans, Seagulls, owls, osprey, and occasionally a hawk or 2.
If I get really ambitious there is a nearby amusement park that has Rhinos, elephants, hyenas, camels, giraffes, meerkats (sadly without lasers), a huge variety of both venomous and constrictor snakes, Orangutans, Gorillas, Chimps, more lions and tigers, a kamodo dragon, a wide variety of birds, Kangaroos, Wallabies, Flamingos, pea****s, and a lot more. The only problem with this is that everything but the birds and the critters from Oz are near impossible to access unless I have morphed some sort of bird to get in in the first place. Even then a lot of the ones that would be of use are kept in an area that is mostly flatland where what little cover there is consists of animal houses which generally house more then one of any given animal, which means acquiring any of them would be extremely dangerous. There are, however, tours available that give you the chance to feed and touch a few of the animals, they are expensive but that still makes the animals viable options.
On another note there are several celebrities who own homes near where I live, so on occasion I have oppertunities to meet tham and ask for something simple like a picture. While I understand why the animorphs refuse to morph other sentient beings, I don't necessarily think that I would limit myself in such a way. This obviously gives me the advantage of getting into places that normal people can't.
The biggest issue I'd have as an animorph in my area is the Scientology stronghold in downtown Clearwater. It would not be a stretch at all to assume that the Yeerks would infiltrate the organization seeing as it is already powerful in the area and most of it's members are people who have literally signed their lives away. This means that the yeerks have access to legions of people who would follow them with or without being controllers. Of course this also gives me an obvious place to look for the yeerk pool seeing as building underground in Florida, especially in this area, is basically impossible.