Many philosophers would follow you in rejecting foundationalism. There are two main alternatives to foundationalism.
Coherentists , such as Catherine Elgin, reject the linear model of justification taken for granted by foundationalists, in favour of a holistic model. They hold that beliefs are justified in virtue of belonging to a coherent system of mutually supporting beliefs.
Infinitists , such as Peter Klein, argue that an infinite regress of reasons is not after all impossible, and indeed that it is necessary for one to have any justification.