So you want to up your game huh? Well, this is some information that you might find helpful.
Here you will find links to various places that have useful tools or information that will help you with your game. If you have any suggestions for links just let me know and I’ll add them on!

General

FFG Forum
The official FFG forum for questions, discussions and announcements. This uses the same login details as the list builder.
https://community.fantasyflightgames.com/forum/222-x-wing/

X-Wing Miniatures Wiki
https://xwing-miniatures-second-edition.fandom.com/wiki/X-Wing_Miniatures:_Second_Edition_Wiki

Buying Guide
This has been produced by the amazing David Sutcliffe, a guide to buying into the game with a breakdown of costs and split by faction. Very useful for new players! (Also his blog is a great read, check it out while you’re there!)
https://stayontheleader.blogspot.com/2019/11/x-wing-buying-guide-introduction.html?fbclid=IwAR15FEi-_WClWDpsu9-pPe0lWqbCP5aaC2yQIj_XG3G_xwVApaoOOsJKIX4

List Building

Official List Builder
This is the official FFG list building app as provided in the core set and expansions. You will need to register to sign in and use it.
https://squadbuilder.fantasyflightgames.com

Unofficial List Builder
YASB 2.0 is a great alternative to the official app with a great easy  use interface and lots of useful features.
https://raithos.github.io

Points changes
One of the key features of version 2 is that point vales for all pilots and upgrades are changeable. FFG have announced that changes will be made twice a year (plus potential emergency changes if they discover something really broken). This is a link to a Google sheets file which tracks all changes.
https://docs.google.com/spreadsheets/d/1iuIMz3c645icIUehrRCNmyj7tWTgScD2K8dF_JwKN1w/edit#gid=1707136315

Tournaments

Official Rules
The official full rules reference for the game. At the bottom of the page under the Support section just expand the Rules menu and click the link.
https://www.fantasyflightgames.com/en/products/x-wing-second-edition/

Tabletop.to
A web based tool to organise a tournament. Free to use too!
https://tabletop.to

List Fortress
A website where tournament participants can enter the list they flew. Great to look at what lists and ships are popular or doing well competitively
https://listfortress.com/

Official FAQ
Official rulings
https://community.fantasyflightgames.com/topic/277390-x-wing-official-rulings/

Simulation

Vassal
Vassal is a board game simulator which has an X-Wing plugin which is kept up to date and has an active online community. It is a player vs player system (no AI).
https://xwvassal.info/

Fly Casual
X-Wing simulator software which is regularly updated with points and new content. The AI is basic but it does allow you to do some basic testing of a list or understanding interactions.
https://github.com/Sandrem/FlyCasual/