You should find something that interest you (just like Buki said) That is how I started my channel too. I got very inspired by some bigger animation channels and then I just jumped right into it I have changed my style a little since i started ( going a bit more in the comedy/humor direction but still I have a message) I see by the way that you are looking for collabs in the comedy genere That is a great way to start and one of the best IMO.. I have done some nice collabs it really has helped me a lot in getting my channel where it is today
But how would you deal with not seeing growth in the channelThe sole advice I can give to you is - anything that really interests you, especially if it is a fringe interest (example - a lot of people really like to play video games; opt for a different interest if you don't have an idea how to stand out among the masses).
That is the point exactly You should NOT start a channel to see growth but because you like doing videos.. Of coruse every single one of us wants our videos to be seen but we kind of have to "earn" that.. Make you videos, enjoy it and start sharing your videos (maybe promote them) and if people like them you will see growthBut how would you deal with not seeing growth in the channel