Godox has been incredibly popular among Fujifilm fans since releasing their system for Fuji cameras. Most of the reviews have been incredibly positive and Godox has over taken Nissin as the top choice among X photographers, due to their reliability and affordable prices. Godox also allows you to update your own flash firmware, which is great when small issues come up.
maxmilne – INITIAL THOUGHTS GODOX X1T-F TRIGGER FOR FUJI
sritch – Fujifilm X-PRO2: HSS, TTL & Godox TT350F
FStoppers – Reviews the Godox Thinklite TT350F Flash for Fujifilm X
Morethanwords.be – Why I use Godox flashes with my Fujifilm cameras
GODOX X1T-F: B&H Photo / Amazon / Adorama
Godox TT350F Amazon
Godox AD200 B&H Photo / Amazon
Godox AD600M Amazon
Godox TT685F B&H Photo
Godox V860IIF B&H Photo
Nissin i60A: B&H Photo / Amazon / Adorama