With Godox/Flashpoint speedlights, you are basically looking at 4 models with 2 options: with or without TTL, and AA vs. lithium ion batteries. The cheapest option and the one I recommend is the manual (non-TTL) version that uses AA batteries (TT600). You may not need TTL, and you pay a $70 premium for models that use their proprietary lithium ion battery, when rechargeable Eneloop or similar AA batteries are very inexpensive.
@Braineack provided a link to the Flashpoint version above, which looks to be on sale for $59 at the moment.
For off-camera flash, most people opt for the XPro transmitter that is specific to their camera manufacturer for its large display and ease of use. The X1T transmitter provides similar functionality, but with a pass-through hotshoe on top instead of the bigger display.
Adorama also has an XPro2 transmitter with more buttons and a few more options for the same price.
Buying Godox vs.
Adorama's rebranded Flashpoint gear really comes down to warranty and price, otherwise they are identical.
Adorama warrantees all of their Flashpoint products, whereas Godox equipment bought off of Amazon or
eBay may not come with any support. I'm not sure what the warranty is like for Godox equipment bought through
B&H, but
Adorama usually has the same or better pricing. A few of their speed lights appear to be on sale right now.
Lastly, here are a few links to better understand Godox lights and their Flashpoint equivalents: