There are tons of decks that you can play and have fun with in wild, although at higher ranks you only see the same 6-7 ones. What you want to craft/play depends both on your preferences as well as on your budget + current owned cards, but in general some legendaries that are more or less 'evergreen' and you won't regret crafting are: Patches (auto-include in countless aggro decks), Loatheb (auto-include in almost all Reno decks, many other control decks and even some aggro/tempo decks like Odd Paladin) and Baku (Odd decks are always meta, whether Odd Paladin, Odd DH, Odd Rogue or even Odd Shaman and sometimes Odd Hunter and even odd Mage)
aggro druid have been a bit toned down with Reader nerf, and its a rare sight on ladder. Secret Mage is everywhere. i would say secret mage odd paladin reno priest and warlock (darkglare, discard, and the ocasioinal renolock) are the most common. been seeing more warriors than aggro druid to be honest
Since you enjoy playing shaman, il share my shaman deck list that I am playing in wild.
I get to legend every season with it and its quite fun. The only big issue that I am facing is secret mage. You can always tweek it to your own needs. It is a n'zoth control shaman list. Tho the list is quite expensive.