After “short” vowels.

One-syllableLonger words
batch
botch
catch
ditch
Dutch
etch
fetch
hatch
hitch
hotch-potch
hutch
itch
latch
match
Mitch
natch
notch
patch
pitch
retch
vetch
witch
 
But ch as in rich
(Column 4)
backstitch
batches
batching
bewitch
birdwatch
blotches
botching
britches
butcher
butterscotch
catchall
catching
catchup
catchword
clutches
clutching
crosshatch
crosspatch
crotchet
crutches
crutching
despatch
dispatch
ditches
ditching
dogcatcher
Dutchman
etchings
farfetched
fetching
Fletcher
flycatcher
glitches
hatchback
hatchet
hatchling
hemstitch
hitchhike
hitching
hopscotch
hotchpotch
hutches
itching
ketchup
kitchen
kvetching
latches
matchbox
matches
matching
matchless
matchstick
mismatch
notches
overstretch
patchwork
pitcher
pitchfork
pitching
potlatch
ratchet
rematch
restitch
retches
satchels
scratches
scratching
sketchbook
snatching
snitchers
snitches
splotches
stitching
stopwatch
stretcher
stretching
switchback
switchblade
switchboard
switches
switching
Thatcher
twitcher
unhitch
unlatch
unmatched
unstitch
watchband
watcher
watching
watchtower
watchword
witchcraft
wretched
wretches
wristwatch