Additive Transitions:

Source: https://msu.edu/~jdowell/135/transw.html

These show addition, introduction, similarity to other ideas, &c.

Addition

indeed,	further,	as well (as this),	either (neither),	not only (this) but also (that) as well,
also,	moreover,	what is more,	as a matter of fact,	in all honesty,
and,	furthermore,	in addition (to this),	besides (this),	to tell the truth,
or,	in fact,	actually,	to say nothing of,
too,	let alone,	much less	additionally,
nor,	alternatively,	on the other hand,	not to mention (this),

Introduction

such as,	as,	particularly,	including,	as an illustration,
for example,	like,	in particular,	for one thing,	to illustrate
for instance,	especially,	notably,	by way of example,

Reference 

speaking about (this),	considering (this),	regarding (this),	with regards to (this),
as for (this),	concerning (this),	the fact that	on the subject of (this)

Similarity 

similarly,	in the same way,	by the same token,	in a like manner,
equally	likewise,

Identification:

that is (to say),

namely,

specifically,

thus,

Clarification:

that is (to say),

I mean,

(to) put (it) another way

in other words,