Level E, Tsuritama Recommendations
They both center around aliens on earth with a mostly humorous take on it. Level C has a very unique and bright style which sometimes take somewhat dark turns. It also features an overly optimistic alien who annoys his human host.
Tbh, I find these two series quite similar involving absurd comedy and the "alien" theme. Both series revolves around a main protagonist whose life is changed by the arrival of extraterrestrial beings.
Both series are decent especially in the comedy department that has supernatural themes.
Both series' main protagonist also has similar personalities.