I wouldnt touch doordash. Dont see how they ever scale. If they or grubhun cant make money in this environment, they never will.
Wouldnt touch groupon either unless for a big short term bounce
Groupon has consistently sat around that $3-$5 range for the last few years. When businesses start to open up, I believe you're likely to see a boom among local business services and travel, where Groupon has their niche. Good opportunity to double or triple your money at current prices.