I try to do a couple of cycling tours every year in Europe, the past couple of years on the ebike. All independent (with my brov), train with bike down to Dover, then on DFDS to Dunkirk/Calais (foot passenger with bike £25 each way)
Ibis, Novotel, B&B Hotels group etc and rides between towns of about 60-70miles per day, mainly canal or river cycle ways (Belgium, Holland, France, Germany etc). Sometimes we'll stay in the same hotel for a couple of nights (Antwerp, Bruges, Ypres ect) and do circular day rides (or go one way on the train and cycle back)
All hotels we have found have good secure bike storage (underground secure garage with bike racks, or a secure luggage room, or a dedicated cycle lockup), we email ahead if it's a chain we haven't used before to check. Hotels come in at about £40-80 per night per room, and plenty of cheap eats during the day (baguette, pate, fruit, pastries) and beers and frites, ribs, kebabs, burgers etc for dinner
Cycling in Belgium, Holland, Germany is a real joy, the huge network of traffic free cycling routes along canals and rivers is amazing