Turning my ss sliding dropout Inbred into a road/hack bike so looking for the best solution for a regular style rear mudguard please, not off the seat post etc. The bike has no mudguard eyelets.

SLS Raceblades look good but get lots of negative reviews re staying putt.

Wondering what solutions people have come up with that works.

Thanks in advance.

Race Blade Long/XL I had fitted on to the QR skewer and chain stay bridge (underneath the road bike brake caliper) , worked well.

Turned my 29er into a gravel bike 700×32 tyres, use a mudhugger FR on the front and standard hugger 29er on the back, stay surprisingly dry even on saturated roads/trails

Rubber coated P-clips would let you use anything you like I’d reckon?
I’ve got a Zefal No Mud Universal mudguard on a sliding dropout inbred i built up for my brother.it attaches to the seat stays with the built in brackets. Bit more involved than some guards during setup but nothing too bad. They’re pretty solid, quite good looking I think and I’ve had no complaints off him about them, even with 2.35″ tyres under them.