In 80 liter and smaller, Acid and Kode are the same types of boards. IN bigger sizes, the Kodes stem from the Kombats. It depends a bit on your weight which size is the best. If you are under 70 kilos, an 80 could be OK. But if not something like Kombat/Kode 86 is probably the right size. A Kode 86 has its sweet spot right at 5.3 and for flat water blasting it handles much windier conditions too.
An EVO is an alternative if you are planning to sail in waves and want to learn how to wave ride. If not, the Kode/Kombat/Acid is a better alternative.