I wish proto had some more variety

I’m not saying their trash or op. I’m just saying their kinda boring rn. I wish they had more troops that were late-game viable. stalkers and adepts aren’t really usable late-game. And colossi and most toss air (except oracles) are kinda niche and only fit very specific situations. I’ve noticed that all my late-games wind up just being high templar immortal zealot. I wish they had more troops that had more variety of use in the late game to spice things up and add different late game possibilities. Does anyone have any ideas for units or upgrades that would add more variety?