Hi, its normally only one per company per 12 months even at different apprenticeship levels, you should pick the one you feel bests suits what you want to-do as a career and matches your skill set.
I applied for Barclays last year but withdrew my application as I wanted to take a gap year, I think most have opened however London degree roles still may not have opened or are not running this year as last year I applied for London technology degree apprenticeship. Hope this helps