Looking for best river cruise company for a weeks cruise

Riviera are very good. We've been with them twice and are going again soon. We liked the Danube river cruise as there is a good mix of places to visit. We've also been on the Rhine and Moselle. The ships are fabulous and the staff really look after you. We prefer a standard cabin on the middle deck as we don't think it's worth the extra cost to be on the upper deck. There are superior suites if you want to push the boat out for your special celebration!

Been on river cruises with Riviera and now booked on a yacht cruise with them. Always fab holidays!

We like Riviera too.

We love Viking River Cruises.

Has anyone been on a river cruise as a single?

We have done a Viking cruise which was pricy but nice enough fellow passengers were all English speaking, many from the US.

Viking for sheer indulgence Riviera for better value and fellow Brits . Riviera food was great when we used to use them . Choose the Danube for wonderful scenery all the trip . I took books to read and never opened them because there was so much to see . We had one Seine cruise with Croisi Uni ( not sure of spelling ) and there were loads of noisy Spaniards on it . They charged so much for water at dinner it was less expansive to buy beer. We realised that if you bought a large bottle of water you could take it away to your cabin and return with it to the dining room. We did this but filled the bottle with water we bought on shore .