I agree on the EL-Nikkors. They are 6-lens designs and they have excellent performance for macro use.
Back in the days those lenses were quite expensive but today quite cheap.
The Componon-S enlarger lenses also very nice.
When I was looking for a quality 135mm enlarging lens to use on bellows, I used this website which compares several lenses, including the EL-Nikkor and Schneider Componons:
https://www.closeuphotography.com/135mm-tube-lens-testIt suggested that the Componon-S was an excellent performer, so I ended up purchasing a copy for very little money, much less than the corresponding EL-Nikkor was going for. I've been very happy with it, so agree that one should consider the Schneider enlarging lenses as well. They come in several variants, with the oldest being just Componon, then the first generation Componon-S, and finally a later generation, with the optical design evlovling over time. The latest ones are supposedly best, but have an annoying feature where the aperture readout is backlit by light from the enlarger (back of the lens). This means that in a bellows setup you will have a light-leak from the aperture window into the camera, and you have to tape off part of the rear of the lens to prevent this. The earlier -S (which I have) doesn't have this problem, and are also cheaper (yay!).
