For purely simple combat focus I don't think anything will beat Advance Wars. Advance Wars Dual Strike and Days of Ruin are both excellent DS games.
No classes, no items, fog of war, officer choice for perks and powers. Units remain the same and each has their strengths and weaknesses.
It is great for strategy though you can often also brute force your way with turtling and then pushing with over whelming forces.
These games are not always easy but they start you off nice and slow with unit introductions and explaining different officer powers.
On the free to play front I can't recommend Fantasy War Tactics enough.
Fantasy War Tactics is currently my favourite f2p mobile SRPG by a fairly wide margin. I'd say it is currently my favourite gatcha game in general.
- Gives a lot of energy and energy potions, ways to earn potions etc.
- Only 1 event character is behind a paywall(they received a lot of complaints about that). The others can be attained by grinding or meeting certain achievements in game or earning the correct currency etc. One thing I hate in most f2p gatcha games is that you need to RNG gatcha for the heroes you want. None of that nonsense here.
- RNG for gear & potentials (stat bonuses for characters/equipments) instead
- Fairly generous with giving away red crystals (currency you buy with real money)
- Heroes' designs are hit and miss. Models look better than portraits.
- Story is pretty forgettable. Not its strong point though the bits of it are sometimes quirky and comical.
- Strategy is surprisingly good. The challenge comes not only from beating the stage but from trying to beat stages with SS rank or setting up your team to successfully auto grind the stages you want. There "challenge" tower that resets monthly. Some of the stages that you have requirements such as include x hero or use only attack type characters. Dungeons usually have buffs for certain setups such as +50mp regen if you bring two tanks.
- PvP is against AI controlled enemy teams. They can be exploited but there is also some strategy in setting up defenses.
Some 3DS eShop Demos
- Fire Emblem Awakening or Fire Emblem Fates, I prefer Awakening personally.
- Project X Zone, very simple and not difficult but very grindy and slow due to tanky enemies and heaps of different characters. The combo-y style combat also means you can't skip all animations making fights drag out. I still really enjoy the game its animation and fanservice. I'd say enjoy the demo but buy other recommendations first.
- Stella Glow, I enjoyed the demo and it is quite simple so far but I haven't played the game. Pretty quick demo and pretty standard JRPG fair for story from what I had seen.
Also I noticed that Stella Deus and Growlanser Heritage of War are are on sale on PSN for $5. Should I buy them? Also should I check out the other Growlanser games?
And thanks for the suggestions everyone, I'll look into gameplay vids. Any with an amazing OST?
I loved Growlanser: Wayfarer of Time but I wouldn't consider it an SRPG in the standard sense. There are certainly strategic elements to the combat at times but it is not conventional of the genre so probably not a good pick to try and get into the genre.