These can be smoothies, bars, drinks, supplements, etc.
Is there something specific you look for (ex. price, ingredients, specific nutrients etc.)?
Is there a brand you like / avoid (ex. soylent, huel, hol food, etc.)
Edit:
I definitely don’t recommend fully replacing your diet with them. I know some people use them instead of other processed food / fast food / skipping meals entirely, and that’s the use case I had in mind for myself
I’ve lost 20lbs in the last 2 weeks replacing 2 of my meals a day with Soylent RTD drinks! They’re great for dieting!
I get a pretty good deal, ordering them by the case on Amazon.
Edit: YMMV, but I was eating a lot of crap and eating way too much. Soylent makes it very easy to eat better and to control my caloric intake.
It’s 1% of my body weight edit: oops, my math was off! (from 206 to 186), and I expect it to stabilize at about 175-170. I was overeating a lot, and I had recently gained a bunch of weight that I’m now losing again due to correcting my diet. 
20 lbs is 9.7% of your body weight. If you read the scale like you do math then I highly doubt you lost 20 lbs in 2 weeks.
Hell, I lost 20 lbs in 2 1/2 months (doing Keto, so still eating plenty of protein) and I still lost some hair as it was too quick. 20 lbs in 2 weeks is unbelievable, that would be 70,000 kcal of fat. While an average male uses around 2000 kcal a day, so that’s around 28,000 kcal in 2 weeks. It’s literally impossible, even if we say a handful of your pounds were water weight.
Should be careful about losing more than 1-2% of your bodyweight per week. Regardless, that sounds like amazing progress! Congrats!
I went from 206 to 186. I’m hoping to stabilize around 175-170. Good advice nonetheless, and thanks for the support!
One of the things I like the best about Soylent is that it’s both really tasty, and it’s also quite filling. Sometimes I get the urge to snack, so I just eat some fruit such as an apple or pear. 
