I agree with your suggestion, the evo items are taking up unecessary space in the inventory. Maybe there should be a 50% of getting a TM or evo item on the 7 day streak, and a small chance of randomly getting TMs from Pokestops like evo item drops.
Personally, I think a "Daily Challenges" implementation might be a good idea to dish out rewards. This can consist of an easy task(capture 10 poison pokemon,etc) a harder task (win 20 gym battles,etc) and a difficult task (hold 3 gyms at once or maybe fight an X number of gym battles with a type disadvantage), with each task giving small rewards like some stardust. Then when all 3 tasks are completed, the player can be gifted a TM or maybe 10 coins
GamePress
An alternative way to acquire TMs
If an alternative way to acquire TMs was introduced, how would you like it to work? Personally, I would be very happy if there was a chance to get a TM instead of an evolution item on the 7 day streak. Any other suggestions? And do you think there will ever be an alternative way to get TMs at all?
Report
Answers
I can see them being available in the store at some point, perhaps in special boxes, but otherwise I think I'd prefer if they remained a raid prize.
I'll admit though that evolution items are a bit of problem, though some people do genuinely need them. I'd rather a reliable means of dropping them not be removed.
Maybe not TMs, but I've felt for awhile that Golden Razz, Rare Candy, and even single use incubators should be drops as rare or slightly rare than the evo items (maybe even specifically from Gold Gym Badge gyms), particularly since evo items won't apply to anything beyond the currently generations.
Also, raids really need to stop giving us more than 6 revives per reward group, apply those drops to other items.
