I took my test last December.
My recipe for success was as follows:
I ordered print copies of the FAA's Pilot's Handbook of Aeronautical Knowledge and the Airplane Flying Handbook. As far as textbooks go, they are relatively inexpensive. I tried reading through them on my tablet, but just couldn't stand not being able to dogear pages I knew I'd return to. Another very handy reference I found was ASA's PM2, The Pilot's Manual, Ground School. I found an excellent example of it used at ThriftBooks. I got the hardback copy for around $20. It looked brand new. They also have relatively recent issues of the FAA manuals too there, so you could check them out if you don't mind being an issue or two behind the current.
For test preparation, I purchased the ASA 2021 Test Prep, Private Pilot softcover book. It was less than $20 on Amazon. It is the typical test bank style study guide, with the explanations of why the correct answers are right, and the wrong answers are, well, wrong. They also have five online tests you can take. If you score better than 80% on any two of the five included online tests, they will endorse you for the test. That test booklet is pretty comprehensive as it covers ASEL, Sport, LTA, Gyro, PPC, - pretty much the whole gamut, and the tests are tailored for what
you are working on. I considered it to be an excellent resource and a bargain.
I also have the 2022 FAR/AIM I preordered in late November. Good information there.
I am adept at self-study. Been doing it for years in my line of work. This may not work for you if you come from a non-technical background or are more of an audible/visual learner type.
I took two practice tests. On the first one I made a 90% and knew I needed to spend more time studying. About a week later I took another one and made a more acceptable (to me) 95%. I took the real test at McGregor (2TX5) PSI facility in the FBO. I made a 97% (missed two), and was happy with that - even though one of the questions I changed from right to wrong three times! Trust your instinct. The cost was
$175 for the test.
Some other references I have, and have been using lately:
ASA's Microsoft Flight Simulator X as a Training Aid, by Bruce Williams (I also have MSFS-X, Saitek/Logitech yoke/rudder/throttle quadrant)
The Student Pilot's Flight Manual: From First Flight to Private Certificate (The Flight Manuals Series)
Jeppeson/Sanderson Private Pilot Manual (1981)
FAA Glider Flying Handbook
I started out doing all of my wind triangle and other problems with the ASA metal E6B. During my initial study sessions, I used a standard four-function calculator and the E6B for fuel gallons to weight conversion for the W&B problems. I had purchased an ASA CX-3 Flight Computer. I pretty much ignored it until the week before my test and I unboxed it and started "playing" with it. Oh my gosh, I was impressed. It does make finding one leg of the wind triangle very easy when given the other two. W&B problems, while never difficult for me, were processed much quicker - especially changing CG questions such as when a passenger departs or for fuel burn.
If you are interested in the physical aspect of taking the test, I can provide details of what my experience was.
Good luck with your endeavor!