>>1195196You might be interested in this chart I came across in an /a/ thread a few days ago. I don't know the exact criteria for it, but it seems to mostly be "less popular dumb, but fun" anime. So, I'd imagine most of these have around a 6/10 because of that.
From the list, I'd personally recommend these:
Animegataris
Bermuda Triangle
Clockwork Planet
Etotama
Gal to Kyouryuu
GJ-bu
Houkago no Pleiades
Mahou Shoujo Naria Girls (This has ad-libbed lines)
JK Meshi (The GOAT)
Ore, Twintail ni Narimasu
Princess Principal
Sabagebu
Tesagure (This has ad-libbed lines)
Time Travel Shoujo
Tonkatsu DJ Agetarou (One of my favorite short-form anime)
Vatican Kiseki Chousakan (I'd only recommend watching the first 4 episodes and the OVA, the rest is kind of boring)