I know I say this about omnibus editions a lot but this goes doubly for Doom Patrol - just buy vol 1 of the trades and see if you like it. Doom Patrol is aggressively weird and dense and you might actually hate it. However, it's fucking amazing and you'd be wrong about that.
In essence it's about a group of superpowered folks each with their own specific mental or physical damage. When the series starts they are broken people, and part of the joy in the series is seeing them grow, heal and fall apart again. It has a very memorable cast of characters and some of the weirdest and scariest villains you'll ever see. It's hilarious, confusing, sweet and it has one of the all time greatest twists near the end that will leave you shaking.
But seriously, just get vol 1 and see if you like it. Then buy vol 2. Then vol 3. etc