There is less than 10 gateway courses , my advice is read each one and see first do you qualify as they have specific 3 or 4 contextual conditions you need to have. After that look at what they are happy you are predicted A level.
so Hullyork one (predictions of AAB or above are not accepted) so you are fine. also you are fine for Southampton . But it is better to go through the conditions to qualify and do you have them as each univ is different.