The Emax Baby Hawk is excellent for starting FPV, small, cheap, brushless and will bind with any FRsky TX. The only hard part is extra batteries, there are some deals on Bangood for those.
Avoid all the older Naze32 and F1 and F3 flight controllers, as noted they are dead in tech terms.
The FT store is not the best place to get into quads IMO. Go watch some Painless 360, Drone Mesh and others on YouTube, then build a short list of what you want in a quad.
They are not hard to build, I wouldn’t touch an outdated cheap ready built 5 inch quad, it’s much better and cheaper to build your own.
Racing, even at a local level, is a pricey past time. How much flying time do you have on quads?
That way you won’t waste money on old tech or dead ends and will get a better experience all round.