The National Library of Wales have now released their 'tithe map' site where you can search FREE OF CHARGE "Search and browse over 300,000 entries from the tithe maps of Wales and accompanying apportionment documents using original and present-day maps"

https://places.library.wales/


What I like is that not only can you search by place but also by person, which admittedly if you are looking for John Jones might be difficult, but if you have a less common name off you go!!