Any recommendations for lap timers that will work with race transponders? (AFM, specifically)

I wasted a ton of money on renting a transponder last year. Before I pick up an X2, I wanted to see if there are any alternatives that you guys use.I was looking into getting an Aim Solo 2, but I don't want to spend the money on it if I can get something else that works as both, AFM transponder and laptimer via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/atlsps/any_recommendations_for_lap_timers_that_will_work/?utm_source=ifttt