While the upper atmosphere of Venus could have some form of bacterial life, I think it's more likely for Titan to have life, for one, it doesn't even need to be on the surface (Even though, we have theorized that life could exist on the surface), Titan is thought to have an underground ocean, so even if the surface doesn't have life, remember, Titan has a lot of organics, a lot could've seeped into the underground ocean, and BOOM! Life!.
Although, on the other hand, I think it's too early to rule anything out, we should send probes instead.