This is what I do for both FA and the draft.
I'll scout players who either fit my overall scheme or my positional archetype.
I tend to be able to make it through a whole draft and draft guys I fully scouted and who are appropriate picks for their respective rounds this way. Conversely, there are lots of guys I just don't even look at because they don't fit my criteria, so I enjoy seeing who the CPU found that I didn't look at.
I allow myself two exceptions.
For drafting or FA, I'll allow myself to target USC alumni as a homer pick.
For FA, I'll allow myself to pursue a "reunited and it feels so good" player who has formerly played for a team and who developed a strong connection with the fanbase, set team records, or something like that.
These rules generally keep me in line and keep it fun.