From Cameraquest site:
https://www.cameraquest.com/ltmlens.htm
35 mm
35/1.5 Canon The fastest lens for the 35 LTM. not the sharpest. black only
35/1.7 Voigtlander Ultron: announced June 1999, available 8/1/99. Modern design, 6 groups in 8 elements, with one aspherical surface. 10 diaphragm blades, rangefinder coupled. One of the best LTM lenses ever made. Made by Cosina for their Voigtlander Bessa L.
35/1.8 Nikkor: This lens is rare and fast, and the most plentiful of the super speed LTM 35's faster than f/2. A good shooter, but hard to find. black/chrome only
35/2 Leitz Summicron ASPH August 1999 Amazingly Leica is releasing a limited production screw mount just for the Japanese market, chrome only. These are sure to become instant collector's items, and are doubtless the sharpest 35's ever made in LTM mount. Alas, inexpensive they are not.
35/2 Canon Black: the last and best of Canon's 35mm lenses
35/2 Leitz Summicron(1958-1962) : a very rare and expensive classic lens for the collector, most made in M mount. chrome only. Watch out for fogging and cleaning scratches.
35/2.5 "Compact" and "Pancake" Voigtlanders introduced in 2000, optics the same in both. The compact version is built in the small 25/4 barrel, with a convenient focusing lever. The pancake version is misnamed in my eyes, a conventional focusing barrel but too big to be a true pancake lens.
35/2.5 Nikkor: in chrome or the later black versions. A very sharp lens. chrome and black/chrome versions
35/2.8 or 3.5 Canon: or Serenar. OK but not great reputations, chrome or black versions
35/2.8 Russian: a copy of the pre-war Zeiss Biogon. Low priced but spotty quality control.
35/3.5 Leitz Elmar(1930-1950) : Prewar versions uncoated, coated postwar. See above comments on the delights of uncoated lenses. Earliest lenses Nickel, most chrome. Watch out for fogging and cleaning scratches.
35/3.5 Nikkor: in chrome or the later black. the most numerous 35 LTM Nikkor
35/3.5 Leitz Summaron (1949-1960): OK but not outstanding. Watch out for fogging and cleaning scratches.