Consider the material. Is the weather likely to be hot? A rubberized raincoat may be uncomfortable. I can't read any details but sometimes they are made with holes like portholes under the arms for breathability.
If the white raincoat is plasticized or rubberized it will clean easily, otherwise if it is a cloth material it will get filthy so avoid white cloth even though it is nice looking.
Yellow is cheerful in rain. I like the beige (although it may be too boring for you) and the red. Consider the length and make sure there is a hood - I think all of them have it but I can't tell for sure.
2/c and some 3A. Modified CG.
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Conditioners: Curl Junkie Beauticurls Strengthening Conditioner,
Deep condish: Curl Junkie Curl Rehab
Stylers: Experimenting with cones & sulfates while the dews are high. Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift