Better make friends with the power rack I guess. I use weight im comfortable hitting for 5 or so reps without a spot. I should probably just ask anyone around as people are generally willing to help.
Every time I bench now I tend to ask someone nearby to spot me and most times they spot for all 3 sets. Though now that I'm more comfortable lifting heavy, I only ask for a spot on the last set when I'm goin for AMRAP.