The Wyre Forest is hard and steep. At least it is with a 3 year old on the back. And pushing a 7 year old. Walking is getting tiring. Like the sound of tibberton circuit.
They've resurfaced Worcester-Birmingham canal towpath up to the Rugby ground. Did that today it's loads better than it used to be. Plenty of places to stop and kids to play, and a pub at Tibberton. You could do a good circular route round via Droitwich and down along pitchcroft etc. Perdiswell has several tracks and paths. Forest of Dean has some good disused railway routes. There's another into Stratford