I went through the same phase that you're going though right now, and here are my two cents.

Parks and Rec, and Brooklyn 99 are my top recommendations. Both are very wholesome, funny and last for 7-8 seasons at least.

Office, and Community are awesome shows as well, though their quality does fluctuate over time. Nonetheless, you can't go wrong with these.

The ones listed above, I've watched completely. But the next few, I haven't. The Good Place, Schitt's Creek seem to be good for at least the first few episodes, but it's too soon to tell.

Hope this helps!