If your content is not suitable for a table (ie there are no horizontal and vertical headers; you are trying to display images side by side) you may wish to use a grid instead. Grids will organise your content, but do not cause the same problems with screenreaders that tables do.
Here is an example of a grid:
If you think a grid will be the best fit for your content please speak to someone from the Information Literacy Support and Development team and we will assist you.