2% max recommended unless otherwise noted. 1% max recommended for soccer.
First, if you can, always shop for the best lines, which include the best "juice"; this includes getting a bet at +100 or -105 rather than -110.
Second, because my bets tend to be "against the public", you can often wait for lines better than when I initially post them. You can monitor where the public is trending here (https://www.wagertalk.com/freeOddsPage/page.html?sport=today&v=2.2) & here (https://www.vegasinsider.com/college-football/matchups/) & here (https://www.actionnetwork.com/nfl/public-betting) & here (https://www.thespread.com/nfl-football-public-betting-chart). I post them early so that you can be on the alert to get the best odds.
Third, per a popular question, I never change the amount of my betting base all year. If you are betting $100 per bet, I never change that all betting "season" for that particular sport. The reason is the luck factor -- frankly, you never know when it will break with you or against you, so putting too much at risk in just one part of the season for a sport is more risk than reward, from my perspective. Do note there are many bettors who disagree, and change their betting base depending on their bankroll size at any given time, but I don't happen to share that approach myself. As always, do as you wish.
*Note: the pick is for the team listed first, in all caps. For MLB the pick is for that team to win the game on the money line. For the game total pick, the pick is for both teams combined score to finish UNDER that total for the game. For the college football picks, the pick if listed by a PLUS sign is for that team to NOT lost by more than that margin; e.g., at +13.5, the pick is for that team to either win or not lose by 14 or more. The % listed in front of each pick is the recommended MAXIMUM percentage of your bankroll -- the amount you have set aside for the year to use for trading/betting on prediction markets/sportsbooks to placer on that particular pick. The listed line is the targeted line that is available in the markets; the "ok to" is if you cannot find that line, it is ok to take the pick up to that point; e.g., if it says "ok to -130" that means it's ok to take as long as it's not higher than -130 (e.g., -135) or if it says "ok to +13" that means it's ok at any spread +13 or ...