You have some troops for a couple of the basic ‘tried and true’ teams.
Alchemist + Banshee can form a nice infinite loop - if you get Valkyrie, definitely try this.
Rock Worm/s and Acolyte and/or Deep Borer also works fairly well.
Luther + Skeleton/s would also be fairly dangerous but you would really have to level Luther first.
Goblin + Goblin Shaman is part of the infamous Goblin team and strong enough by itself - more so if you can get Boar Rider / Hobgoblin / Goblin Rocket.
When in doubt, fill in the gaps with your hero if you can - early on the hero is reasonably healthy and the flexibility of your various weapons is nice.
Ragnagord and Herdmaster almost build their own mana generation team. They are both Divination Fields and both Wildfolk
I didn’t see if you are on Mobile/PC or on one of the Consoles, because team bonuses that arrived in the mobile/PC with patch 1.0.7 make for some other team building options.
Like
Centuar Scout
Ragnagord
Herdmaster
(Soothsayer or pegasus) These let you hit either 3 Divination fields / 4 Wildfold bonus or 4DF/3WF.