For quick testing purposes I added a couple of blueprints that won't drop under normal circumstances.
Considering that at times, thanks to RNGesus, they might be hard to come by, I left them available to the player.
To use these you'll need the Console Commands mod though...
http://fractalsoftworks.com/forum/index.php?topic=4106.0
https://www.nexusmods.com/starsector/mods/2 

Unlock Tyrador Safeguard Coalition base Ship, Fighter and Weapons blueprint package.
(this package can be a random loot drop; includes all Coalition themed ships added by the mod that are not re-skins)
additem TSC_base_package

Unlock Tyrador Safeguard Coalition auxiliary Ship blueprint package.
(includes Coalition themed ship re-skins and Coalition civilian ships; the later can drop, individually, as blueprints)
additem TSC_aux_package

Unlock Tyrador Safeguard Coalition rare Ship, Fighter and Weapons blueprint package.
(includes all Coalition rare drops; these can drop, individually, as blueprints) 
additem TSC_rare_package

Unlock Tyrador Safeguard Coalition "Vanguard" ship blueprint package.
(includes the Vaguard skins of the Atlatl, Halberd, Amentum and Kestros classes; these won't drop as blueprints)
additem TSC_vanguard_package

Add Anvil-class Forgeship directly to your fleet.
(technically stations, however they can be used normally by the player; these ships can't be obtained normally)
addship TSC_Forgeship