Things will pick up once you reach level 5. Summon monster 3 is one of the best summon spells for its level and you get some gems like sleet storm, stinking cloud, phantom steed, Melf's Unicorn Arrow, and dimension step.
I don't get how you can be be bored with a conjurer, it's the most flexible school of magic. Here's a few low level spells that are interesting and fun: mount, benign transpositation, wall of smoke, hail of stone, unseen servant, web, fog cloud, and dimension hop. And even underwater you still can summon fiendish octopuses and fiendish medium sharks.