comfortable road saddle £70-120

You can get a computerised fit in a few shops. You sit on some seat - it takes readings, then you input some basic stats of height, weight etc and it comes up with a few saddles.

A little expensive, but the advantage is that it was about a 60 day warranty if it didn't work out so you can swap to another.

I've got a B17 on my tourer and a Cambium C17 on my road bike

Both I can ride in normal clothes for 10 miles with minimum discomfort. Can ride all day in bibs on them.

I broke my B17 in after less than 100 miles but I do ride it offroad a lot and I'm a heavy rider. It's massively comfy but I'm not keen on the bulk or the squeaking so wouldn't have one on a road bike (I like my road bike to be absolutely silent).

C17 is showing a fair bit of wear on the nose just behind where the hard nose piece ends, but it's not affecting the comfort or safety of the saddle. It's pretty common for these saddles that they end up looking a little tatty, particularly if you're riding in normal seamed shorts/trousers. Overall very happy with it to the point I forget I'm sitting on it. Will definitely have another one when it finally wears out.

Just one thing with the Cambiums - check the amount of clearance you have with the sides of your seat post. I narrowed down to a C15 thinking I wanted something sportier and my seat post cut the saddle wing where my massively powerful thighs (yeah, right) compressed it agains the side of the seat post clamp. Gutted doesn't cover it - £90 down the tubes and Brooks don't sell replacement tops. It's particularly a problem if you ride with the saddle all the way back. Probably won't be an issue on the C17 but do check clearance when you fit it (compress the saddle with the heel of your hand between the rails (where your sit bones will be) and check it splays out clear of the seat clamp edge.

I've got a Fabric Scoop https://fabric.cc/products/saddles/scoop-sport-shallow/ that I picked up for £30 a few years ago & have had many comfortable hours on it. Saddles are very much an individual preference as everyone's different with weight, flexibility, sit bones, etc. all coming into play.

Good luck with the C17!

I used to run a B17 on my touring bike and a Professional on my race bike both of which I loved then. Now however I see that the fore and aft travel on the Professional is very limited so I opted for the C17 hoping that it would give the same comfort as the old B17.
The jury is still out I'm afraid. Having said that the C17 required no breaking in like a leather perch would but I'm feeling that the C17 is a little wide for me. I am havig to stand up to relieve the pressure after around 50km. I measure up as a 155mm on Specialized's assometer so I'm thinking that I should try the C13 /158 which is a little narrower.