Ask HN: Is there an almost good way to pre-validate an idea myself?

I am interested to find out ways/heuristics/questions on how to pre-validate my own ideas before going with them to talk with possible customers or partners.

In general I have a lot of ideas and I am looking for a way to decide which one is the one who I should invest time to validate it with potential customers.

I found some good questions to ask about my idea in term of market size, is it a need or a possibility, what kind of customers will there be ... But I am looking for more ideas or better questions that can guide me and make this process less subjective.

I am curious if someone recommends a way to do this in a way that is as efficient as possible. Probably I am looking to some kind of skeptical analysis combined with data.