If you are in the UK the cheap-and-cheerful Meopta Opemus would suit you well. They are/were very popular and sold in large quantities. More importantly, they are also well made too.
Available with condenser or dichroic heads and over many decades - look for a version 5 or 6 as those are still relatively easy to get spares for. The Opemus goes up to 6x6 (6x7 for the newest models) and the standard neg carrier was a very useable double-glass one, although you can order glassless cheaply from Fotoimpex in Germany if you prefer that.
Meopta also made the Axomat (for 35mm, less robust tan the larger models) and Magnifax (up to 6x9, very well made).