first(ly),
second(ly),
third(ly)

finally,
lastly,
last but not least

eventually
in conclusion

such as ...

like

as a first example
as another example/instance
another example yet is
as still another example
in still another instance

we can cite
we can here think of

among which

besides
furthermore

as well as ... ( verb + ing )
not to mention
too
also
What's more

a great deal / many a

a major ...
a large
an important ...

... of great importance
a high level of ...

above all

superlatives : best, smallest, least, etc.

the same as ...
like
alike

in similar ways
similar to
similarly

in a like manner

both
all
neither

while
whereas

even so
on the other hand
unlike
in contrast with/to ...

contrasting
opposite
far from
other
another
otherwise

different
differently
a very different thing is

despite
in spite of

rather

one cause ... another cause ...

a major/continuing cause for ..is ..

there result(s)
there follows that

the result is
the likely outcome

when all is said and done
in a nutshell
to cut a long story short

the first stage
the second step

until
throughout
soon
after

for
since