If we want to add more to a point already made, or introduce a new point, the following words or phrases might be useful
besides; consequently; correspondingly; following this; further; furthermore; in addition; indeed; in fact; in regard to; in the meantime; in the same way; in reality; in respect to; moreover; neither...nor; not only...but also; respecting;
above all; again; also; as a consequence; as for; as to; as well as; regarding; similarly; subsequently; then again; too; what is more
But if we would like to reinforce a point, or state it in a different way, we might use the following words
in view of this; in other words; to put it more simply; with this in mind; that is to say
In addition, we perhap interested in conceding a point. We can use the following words
admittedly; after all; all the same; at any rate; granted; however; in any case; in spite of; it is true that; nevertheless; still; to be sure
