Your awning size (from the Adria Website) is 1077. Isabella do two fantastic touring awnings, the Capri North and the far more expensive Ambassador. Isabella size 1075 fits A measurements from 1061 to 1085. Were I to recommend a make of full awning it would be Isabella. There are cheaper options such as Bradcot and Dorema, neither are poor quality but the comparison with Isabella just doesnt hold up. For an Ambassador of that size you would be looking a touch over 2.5k, a Capri somewhat cheaper.
A decent cheaper option would be Ventura also made by Isabella.
Basically if you look for one that fits a 1077 awning rail any make would do. You then need to look at what make meets your needs and budget but do remember that the cheaper ones tend to be poorer quality and the more expensive ones like Isabella tend to be the best. There is a very wide choice in theory but with the current level of sales availability may be limited.