Some of the easily available Alfred's, Hal Leonard and Kenneth Baker piano and organ books all have useful fingerings and playing tips. Check out your 2nd hand bookshops online.
As a teacher, I usually spend some time each week altering the fingering in books! Kenneth Baker's fingering is well known amongst teachers for being idiosyncratic and sometimes just daft! Some of the fingering in the revised versions of the books are even worse.
There is always good fingering and bad fingering, but often no 'absolutely correct' fingering. If it works well, is comfortable and gets the desired result, it's usually OK.
As a rule, you shouldn't be crossing fingers over or putting thumbs under if you don't need to. If you've run out of fingers, it's usually a sign that you could have done something a few notes earlier. Running out of RH fingers going up, and then crossing, say, 3rd finger over 5th, is definitely to be avoided, even if it's written in the book. There will always be a better way!
Scales practice is always useful, but if you wish, you can limit it to the keys in which you actually play, plus their attendant keys.
I teach what I call 'logical fingering' - but in 1 to 1 lessons only, live or on line, where I can demonstrate what needs to be done.