For wax Collinite 476 as Ads suggested is excellent. Haven't tried it personally but heard only good things about it, with the quoted durability I would be curious to know if it is indeed a wax or a paste sealant like FK1000p. Another wax to suggest is FK2685 which is very similar to 476, large 412g tin and less than £20, it is good enough finish wise to be used in the summer and a breeze to use. Also has durability comparable to 476 with 2 coats.
Ads your car looks brilliant with the 2 coats of 476, very deep gloss there for a winter coat.
If it is a sealant you want, FK1000p would be my suggestion as its again less than £20 for a huge 412g tin. My go to sealant for winter protection and also as a base coat before a wax on top with family cars for added durability. It is just as effective on wheels with the bonus of being simple to apply and remove. 2 coats of this, a few hours between should be enough for at least 6 months. It is a absolute gem and bargain of a product.