The current version of KB6NU's No-Nonsense Technician-Class License Study Guide
can be directly downloaded for free by clicking that link; you can also buy paper copies or study guides for other license classes on his web page.
If your VE team uses paper and you want to get a feel for that, adequate printable tests (4-5 pages) can be generated at https://www.eham.net/exams/ and http://aa9pw.com/, and you can find a Scantron sheet at http://www.homesweetlearning.com/res/4392i75700/647w831r60/ScanTronAnswerSheet.pdf and elsewhere.
Another set of instruction videos (see the old site for more) was made by Tualatin Valley Cert in 2021. Each video covers one subelement of the question pool.
Secession 7 https://www.youtube.com/watch?v=mfVMA6UoKO8
Secession 8 https://www.youtube.com/watch?v=me_nrwsGHrM
Secession 9 https://www.youtube.com/watch?v=EKymZ5BRhR0
Secession 10 https://www.youtube.com/watch?v=C2NVSZDoO9Q