There is no specific guide...the ERA of gurus that teach you to make millions from 2010 for $49 and clients that belive absolutely every shit you tell them is gone haha...
For CPA learn few basic things on traffic....how to get the traffic first...Free / Paid ...
For Paid i guess you have ideas... G ads, Fb ads, Snap Ads, Pinterest ads, Pop and so on... there are some tutorials on youtube that explain all of those with demo campains .... be careful on case studies...usually there are many liars and indirect sellers there....problem there is you need budget for test on every campain.
For free traffic you can start just with some small knowledge either from combining other people methods on bhw and tens of other forums and your best friend ChatGpt (if you ask the right questions *he* will give you some pointers....
Easiest thing to do on OGADS for example ...Make 3-5 youtube channels...few tiktok accounts....do videos on Game niches like Coin master, robux, vbucks, free dice links, gift cards and if you have the courage...some fake crypto bot that seems too good to be true ...i saw few of those myself and videos looked like something really to belive in but thats just what i was saying on first.... $100 for a bot that makes you millions.
After you make your first few hundreds ... you can go further.... affiliate selling (Clickbank, Maxbounty ...etc ) .. there are tons of networks ready to accept your traffic. You can try with paid there....or invest in a bit of SEO for long tail kws sites... Buy some good backlinked old domain (use your imagination to find it without buying from networks - you can get real domain 20-40PA DA for 10-12$)... get a small host for wordpress.... chose your niches ... for weight loss niche for example.... Buy a subscription for Semrush shared account...there are sites offering very cheap Group Buys.... analyse a bit few keywords for weight loss, save the long tail ones (200-500 keywords with 10-50-100 monthly searches because are quite easy to rank with old domain) , post articles for each (chatgpt is your friend here again) ... find your own way to index the links...there are few to index fast ... repeat the process ....get some backlinks from seoclerks ..do some social shares on some big groups on facebook, pinterest, xing etc.... . I myself have 14 such sites targeting over 30k keywords and is working quite well...
Good Luck!