There isn't many places to keep a trash can, its true. I keep mine in the garage and its a cheapie from Dollar General, with a nice sealing lid about 13 gallon size. I also like to keep an old coffee container by the sink to catch scraps or packaging (bits and pieces) ... saves steps. The coffee container is the one about 1 gallon ... cost $0.00 and has been used for years.
WW
If we were to place one out in the opening, this one looks like a good choice with options to collapse it:
I have that one. We do love it. It helps to fill a gallon-size ziploc and fill it with water for ballast.
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Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips