To indicate time sequence:
* Subsequently: More formal than "then," implies something happened later.
* Following: Often used with "the," emphasizes a clear order of events.
* Next: Suggests the following event is in a series.
* Later: Less specific than "after," implies a time period in the future.
* Thereafter: Formal, similar to "subsequently" but implying a longer duration.
To indicate consequence:
* Therefore: Emphasizes a logical connection between events.
* Thus: Similar to "therefore," but often used to summarize.
* Consequently: Highlights the result of a previous event.
* As a result: Emphasizes the outcome of a previous event.
To indicate continuation:
* Furthermore: Adds additional information to what was said before.
* Moreover: Similar to "furthermore," but often used to emphasize the importance of the additional information.
* In addition: Emphasizes that something else is being added.
* Besides: Similar to "in addition," but can also imply a different perspective.
Other possibilities:
* Afterwards: More informal than "after," emphasizes a later time.
* Henceforth: Formal, implies a change or shift in the future.
* Finally: Indicates the last event in a sequence.
Example:
Instead of: "They went to the park, then they had ice cream."
You could say:
* "They went to the park, subsequently they had ice cream." (More formal)
* "They went to the park, following that, they had ice cream." (Emphasis on order)
* "They went to the park, next they had ice cream." (Part of a series)
* "They went to the park, later they had ice cream." (Less specific about time)
The best alternative will depend on the specific nuance you want to convey.