Help is at hand!
$ man -S 1 -k hex dump
hexchat (1) - IRC Client
aseqdump (1) - show the events received at an ALSA sequenc...
bsondump (1) - MongoDB BSON utility
c2ph (1) - Dump C structures as generated from "cc - g...
cpanfile-dump (1p) - Dump prerequisites from a cpanfile
dbicdump (1p) - Dump a schema using DBIx::Class::Schema::Lo...
devdump (1) - Utility programs for dumping and verifying ...
djvudump (1) - Display internal structure of DjVu files.
iccdump (1) - Dump an ICC file in human readable form.
dumpkeys (1) - dump keyboard translation tables
gsf-vba-dump (1) - extract Visual Basic for Applications macros
hd (1) - ASCII, decimal, hexadecimal, octal dump
hex2hcd (1) - firmware converter
hexdump (1) - ASCII, decimal, hexadecimal, octal dump
iecset (1) - Set or dump IEC958 status bits
intel_aubdump (1) - Launch an application and capture rendering...
intel_audio_dump (1) - Dumps the Intel GPU registers for HDMI audi...
intel_bios_dumper (1) - Saves the Intel video BIOS contents to a f...
intel_error_decode (1) - Decodes an Intel GPU dump automatically c...
intel_gtt (1) - Dump the contents of an Intel GPU's GTT
isodump (1) - Utility programs for dumping and verifying ...
isoinfo (1) - Utility programs for dumping and verifying ...
isovfy (1) - Utility programs for dumping and verifying ...
lwp-dump (1p) - See what headers and content is returned fo...
mcat (1) - dump raw disk image
mech-dump (1p) - Dumps information about a web page
mongodump (1) - MongoDB
mymeta-cpanfile (1p) - Dump cpanfile out of (MY)META files
objdump (1) - display information from object files.
od (1) - dump files in octal and other formats
pg_dump (1) - extract a PostgreSQL database into a script...
pg_dumpall (1) - extract a PostgreSQL database cluster into ...
pg_restore (1) - restore a PostgreSQL database from an archi...
pg_xlogdump (1) - display a human-readable rendering of the w...
pnmtoxwd (1) - convert a portable anymap into an X11 windo...
pstruct (1) - Dump C structures as generated from "cc - g...
screendump (1) - dump the contents of a virtual console to s...
showfont (1) - font dumper for X font server
sqlt-dumper (1p) - create a dumper script from a schema
svndumpfilter (1) - Filter a subversion repository 'dumpfile'.
svnrdump (1) - Subversion remote repository dumper and loa...
tiffdump (1) - print verbatim information about TIFF files
timage (1) - Create test images, default hex RGB surface...
ttfdump (1) - Dumping the contents of a TrueType Font file
utmpdump (1) - dump UTMP and WTMP files in raw format
xwd (1) - dump an image of an X window
xwdtopnm (1) - convert a X11 or X10 window dump file into ...
xxd (1) - make a hexdump or do the reverse.