Seville, Costa Blanca to Alicante Nov/Dec 2022. Any advice/route info?

Hi

I'm arriving in Seville mid November, planning to cycle to Cadiz, then to Murcia/Alicante. I would prefer to stick to a coastal route with villages on the way, rather than climbing 100km plus per day the hilly way but I could do either or a combination. I just don't want to get onto a long remote route by myself and not find a place to stay!  I'm waiting for a knee replacement so 50-70 km a day and not to much climbing is better. I have plenty of time - a month.  Thank you.