Here is a short list of some local to me, well worth a ride out (motorcycling term, that's what I use to move about) to visit.
Maidenhead Heritage Centre,
http://maidenheadheritage.org.uk/ Small, free and has a paid for section devoted to the ATA, "Granny flew Spitfires".
River and Rowing, Henley
http://www.rrm.co.uk/ A bit costly at £11 this does give a years pass. Wonderful "Tales of the Riverbank" walk through introduction (great for kids of any age!) Two mainly fixed galleries (and an extension) and a changing one.
Museum of Rural Life, Reading
https://www.reading.ac.uk/TheMERL supurb and free. The university has other museums on campus too, open during the week in term time.
Reading Museum
http://www.readingmuseum.org.uk/ with free motorcycle parking just round the corner.
Wycombe Museum
https://www.wycombe.gov.uk/pages/Spo...be-Museum.aspx another small one, free with parking and a cafe, proper coffee and proper cake in huge slices.
Berkshire Aircraft Museum
http://museumofberkshireaviation.co.uk/ Jam packed with old aircraft and history of Miles (aircraft). A tad scruffy, it is a working restoration project all the time, about three quid to get in. Don't get chatting with one of the incumbents, you will be there for hours!
This is an experiment for my proposed museums section
https://www.vintage-radio.net/forum/...d.php?t=134015 , more to follow...