A full cover from Oceansouth will give you the most protection but you can’t get the OEM logo.
Oceansouth Outboard storage cover protects your engine from dust, grime, salt spray damage and UV fading. Custom fit outboard motor storage full cover made to fit each individual model of popular outboard motors. Covers the Honda Outboard from top to prop. Consist of elasticized hem & Twin...
oceansouth.us
If you absolutely must have the OEM logo you can get an OEM Honda cover but it only covers the cowling and not the leg. The cowling will look great and the leg will eventually fade and not match.
Honda 08361-34068AH Eng Covr Bf200/Bf225
https://www.amazon.com/dp/B00AJTPU3Y/ref=cm_sw_r_cp_api_fabc_DffPFbH2SJ3WF
Google is your friend for finding things like this. Ebay usually has cheaper prices once you find the correct part number.