In addition to the baby Technikas, there is also. Linhof Technikardan. The issue with all the 2x3 Technikas is they don’t use easily accessible 6x9 Graflok roll film backs. The Horseman 6x9 roll holders that work on all my other 6x9 cameras are easy to find, and relatively inexpensive. The baby Linhofs all require a special Rollex or Super Rollex role film back, and they are harder to find and much more expensive.
Most of the other option have been mentioned. There are also Japanese wooden cameras of miscellaneous manufacturer. @B.S.Kumar has frequently had some for sale. Of the ones I’ve used:
Arca Swiss 6x9 (post-Oschwald): my favorite of the bunch. Very well made, smooth and rigid. Mine has the folding rail, so the whole thing can be quite compact.
Cambo SC-1: also very well made. My biggest issue with these is they’re cumbersome setting up for wide lenses. They also don’t fold up well, so if using in the field they are a bit more challenging.
Galvin 6x9: as tiny and light as you could hope, but I had issues with movements on mine. They work but the loosening for movements is not very accurate as it has a tendency to move when locking the movement down.
Linhof Technika 23: as mentioned the biggest issue is available roll film holders. I wanted a 6x9 back and the only one I could find was over US$300.
Linhof Technikardan 23S: I would love the camera if I could use the less expensive Horseman roll backs.
Horseman VH and VH-R: the only difference between these is the VH is pure technical view camera, the VH-R has a rangefinder with cams to adapt the range finder to different focal length lenses. Build quality is a tiny bit lower than the baby Technikas, but ease of use seems a fair bit better. With the right cams the VH-R can easily handheld.
Most of the other option have been mentioned. There are also Japanese wooden cameras of miscellaneous manufacturer. @B.S.Kumar has frequently had some for sale. Of the ones I’ve used:
Arca Swiss 6x9 (post-Oschwald): my favorite of the bunch. Very well made, smooth and rigid. Mine has the folding rail, so the whole thing can be quite compact.
Cambo SC-1: also very well made. My biggest issue with these is they’re cumbersome setting up for wide lenses. They also don’t fold up well, so if using in the field they are a bit more challenging.
Galvin 6x9: as tiny and light as you could hope, but I had issues with movements on mine. They work but the loosening for movements is not very accurate as it has a tendency to move when locking the movement down.
Linhof Technika 23: as mentioned the biggest issue is available roll film holders. I wanted a 6x9 back and the only one I could find was over US$300.
Linhof Technikardan 23S: I would love the camera if I could use the less expensive Horseman roll backs.
Horseman VH and VH-R: the only difference between these is the VH is pure technical view camera, the VH-R has a rangefinder with cams to adapt the range finder to different focal length lenses. Build quality is a tiny bit lower than the baby Technikas, but ease of use seems a fair bit better. With the right cams the VH-R can easily handheld.