Vedic Sanskrit corpus
The corpus of Vedic Sanskrit
texts includes:
The Samhitas (Sanskrit
saṃhitā, "collection"), are
collections of metric texts
(" mantras"). There are four
"Vedic" Samhitas: the Rig-
Veda, Sama-Veda , Yajur-Veda ,
and Atharva-Veda , most of
which are available in several
recensions (śākhā ). In some
contexts, the term Veda is
used to refer to these
Samhitas
The Brahmanas are prose
texts that comment and
explain the solemn rituals as
well as expound on their
meaning and many connected
themes. Each of the
Brahmanas is associated with
one of the Samhitas or its
recensions. The
Brahmanas may either form
separate texts or can be
partly integrated into the text
of the Samhitas. They may
also include the Aranyakas
and Upanishads.
The Aranyakas , "wilderness
texts" or "forest treaties", were
composed by people who
meditated in the woods as
recluses and are the third
part of the Vedas. The texts
contain discussions and
interpretations of ceremonies,
from ritualistic to symbolic
meta-ritualistic points of
view. It is frequently read
in secondary literature.
Older Mukhya Upanishads
(Bṛhadāraṇyaka , Chandogya,
Kaṭha, Kena , Aitareya, and
others).
The Brahmanas, Aranyakas , and
Upanishads , among other things,
interpret and discuss the
Samhitas in philosophical and
metaphorical ways to explore
abstract concepts such as the
Absolute ( Brahman ), and the
soul or the self (Atman ),
introducing Vedanta philosophy,
one of the major trends of later
Hinduism.
link:— https://en.m.wikipedia.org/wiki/Vedas
There are a lot of brahmanas and aranyakas so you shall get in the following links
Brahmanas
Aranyakas
Although shatpath brahmana is availablle online on sacred texts.com— http://www.sacred-texts.com/hin/