List of Acceptable Transitions

1st, 2nd, 3rd, etc.

Importantly Previously
A further In (my) conclusion Probably
A second/third/etc. In addition Provided that
A similar In any case/event Rarely
Above all In brief Rather
Additionally In case Recently
After In contrast Regardless
Afterward(s) In fact Remarkably
Again In general Right now
All in all In order to/for Second(ly)
All these reasons In other words Shortly
Also In particular Similarly
Alternatively In short Simultaneously
Although In simpler terms Since
Altogether In spite of So far
An additional In sum/summary/summation So that
An example In the end Sometimes
Another In the first place Soon
As a consequence/result In the future/past Specifically
As an example In the (season of the year) Still
As I said/have shown In the meantime Subsequently
As long as In the same manner/way Surely
As soon as In the second place That is
As well as In truth The final/last/concluding
As you can see Incidentally The first/second/third/etc.
At first Indeed The main
At last Instead The next
At that time/point It follows that The other
At the same time It is true Then
At times It seems Thereafter
Basically Just as Therefore
Because Last(ly) These are/were
Before Lately Third
Besides Later This also means
Best of all Like This concludes
Beyond Likewise This is/can
Certainly Maybe This/That means
Clearly Meanwhile Those are/were
Consequently Moreover Though
Contrarily Most important(ly) Thus
Conversely Most of all To begin with
Currently Most of the time To conclude
Despite My first/second/third/etc. To do this
Doubtless My last/final/concluding To doubt that
Due to Namely To explain
During Naturally To illustrate
Earlier Nevertheless/Nonetheless To put it another way
Equally important Next To put it differently
Especially Not only To start with
Even Now To sum (it) up
Eventually Obviously To summarize
Ever since Occasionally To this end
Fifth Of course Today
Finally Often (times) Tomorrow
First(ly) On one hand/the other hand Truly
For example/instance On the contrary Typically
For one (thing) On the whole Ultimately
For that/these/this/those On top of that Unless
Formerly Once Unlike
Fourth One Until
Frequently Ordinarily Usually
Futher/Futhermore Other When
Generally Otherwise Whenever
Given Overall Whereas
Granted Particularly While
Hence Perhaps Without (a) doubt
Here is/are Plus Worst of all
However Possibly Yesterday
Immediately Presently Yet another