Fello Long Beach inhabitant/transient here! Their isn't much in the form of habitat here-and like you the only amphibian I've seen would be these Garden slender salamanders. I have not seen even bullfrogs here at the city parks(all those abandoned turtles prolly et em all??).
For cheaper housing I'd reccomend buying a sweaterbox of appropriate size. This makes viewing not as clear however. Be SURE that the critter cannot escape these guys can squeeze into just about any little crevice and rapidly dry up on the way to your bathroom at night.
So far in LB I have seen.
B. major
Elgaria multicarinata(CA Allie lizard...according to CA herps.com LA/LB is an intergrade area). This species appears to be the lizard best adapted to life in the inner city...probably due to lower temp requirements, reclusiveness, and preference for moister, gardenlike habitats and cover. They are the only lizards on CSULB campus.
Uta stanisburiana
and of course the omnipresent Sceloporus occidentalis
I've heard of Cal kings, gophers, and red racers but have never found any myself. Their are very few plots of open land left without fencing around them.