I mean this in the kindest way.. do not used Seeds of vinifera grapes (majority of traditional wine grapes are in the category), due to something called phylloxera, which in simple explanations is a tiny bug that attacks roots and leaves, and will pretty much kill vinifera ( some places are still using own rooted vines) so they need to be grafted onto north american root stock. in terms of variety, if you want to try I would recommend ensuring you have a variety with loose clusters, if humidity is a concern leaf removal is deeply recommended (removing some or all leaves in the fruit zone). you may be able to find some sprays for helping with mold and fungus but they can get expensive and if you are not diligent in spraying you can loose your crop and maybe even your vines.