[name]HI[/name] there! [name]Tessa[/name] is a great name, simple and classic! Great job there!
There are so many names on your list that i think would work amazingly for you, these are them:
[name]Cassidy[/name] - [name]Tessa[/name] & [name]Cassidy[/name] sound like really sweet sisters.
[name]Eliza[/name] - [name]Tessa[/name] & [name]Eliza[/name] sound like an English [name]Royal[/name] pairing. I can see them playing around the garden in their tulle filled dresses getting mucky and having the best time!
[name]Cleo[/name] - [name]Tessa[/name] & [name]Cleo[/name] sound like really cool sisters. The ones that all the boys are after!
[name]Fiona[/name] - [name]Tessa[/name] & [name]Fiona[/name] sound very Irish too me. They work so well together! They seem like a fun loving pair.
[name]Georgia[/name] - [name]Tessa[/name] & [name]Georgia[/name]. [name]Tess[/name] & [name]Gigi[/name]. Perfection.
[name]Meg[/name] - [name]Tessa[/name] & [name]Meg[/name] gives the same feeling to me as [name]Eliza[/name]. Actually [name]Tessa[/name], [name]Meg[/name] and [name]Eliza[/name] is a perfect set of 3 sisters!
[name]Louella[/name] - [name]Tessa[/name] & [name]Louella[/name]. [name]Tess[/name] & [name]Lou[/name]. A very southern belle type pair!
My favorites are [name]Tessa[/name] & [name]Eliza[/name], [name]Tessa[/name] & [name]Cleo[/name], [name]Tessa[/name] & [name]Georgia[/name] and [name]Tessa[/name] & Meg.
I would not go with:
[name]Colette[/name] - too formal to go with [name]Tessa[/name]!
[name]Erin[/name] - [name]Tessa[/name] & [name]Erin[/name]. Try saying it outloud, a little tongue twister!
[name]Lyla[/name] - too popular, brings down the fun sophistication of [name]Tessa[/name]
[name]Rosetta[/name] - too formal
[name]Sabra[/name] - sounds like a “Lightsabre” - very star wars
[name]Hope[/name] this helps!