I have a large (14") android tablet for entertainment. Things can be loaded in advance or downloaded along the way if there is a suitable connection. This tablet also has a detachable keyboard and you can use a USB mouse or the touchscreen making it suitable for online emails, shopping, general browsing. The only thing is that it needs to be plugged into 12v power if it is going to be used for longer periods.
You might look at a Chromebook.
I have a Starlink Mini that I got for a camper van. I'll probably try it on my CD 22 this summer to see how well it works. Right now Starlink Mini service is US$50 for one month (50Gb) of service. Excess data is $1/Gb. The service can be started at stopped as needed (in 1 month blocks). The list price of a Starlink Mini unit is $599, but it does seem to go on sale regularly.