Road bike recommendations

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I might be in the market for a new frame as my road bike seems to be dying on me.
What are my options? Requirements are: decent, light, fast, durable and available as frame only. Alloy or steel or carbon or mixtures thereof. Preferably something that might crop up on ebay every now again as a bargain.

Just an entry level racing frameset for £150 -300 that's reliable and fast.

What modern brands are worth looking to? And which models are recommened?
Trek? Cannondale? Giant? etc etc...
Sorry for such a wide open question... I've been on ebay and frankly I have no idea what's good and what's shite when I'm looking at anything post-1990!

I'll be using it to train all year round and hopefully race in the summer.

Alway worth checking EBay for stuff the MAMILS have upgraded from.

As for new stuff. This would be my chioce. You even get a Ritchey WCS stem.

https://www.canyon.com/_en/roadbikes/bike.html?b=3128