[Next_rim]

Not sure it's a bronze way to go, but fast colossus on top of 3 warpgates is just as good at stopping 3(4) rax 1-base from T. The advantage of colossus is that you can also break tank contains. Disadvantage - much more micro intensive.

Here is a replay of a game i played yesterday. I scouted a marauder and figured it was either 2-rax into expo or 3-rax. When he arrived with 2-nd wave of marauders, I knew it was 3(4) rax. I got my colossus out just in time, and eventually repelled the push.

I lost in the end for various reasons (bad probe saturation, didn't add production, attacked his gold when I had advantage and should've just macroed, etc.), but that's not the point. 14 min wave brawl of 3gate+robo vs 4 rax at my base. Check it out, if you want to try colossus play.

On top of that, another example of colossus opener on metalopolis, but this time opp went 3-rax into expo, then tanks (!), and grabbed gold. It's a lengthy macro game, feel free to check it out if you want to know how it feels and plays out into mid game and late game.