Flat bets are the best IMO.
Try to play at a book where you can get reduced juice, like 105-100.
Even though I will play an occasional teaser or parlay, these types of wagers require multiple teams to win or cover to collect one individual bet, but if you can get a 'soft' line or two, you may consider them.
Wager with your head, not over it, and best of luck to you, we have some might fine handicappers here who know what's up.