You could run Clomid
100/50/50/25
or 50/50/25/25
or 25/25/25/25
or you could run Nolva 40/40/20/20.
Most guys prefer to blast and taper off a SERM. There's no single correct answer, go by how you feel, how long your cycle was, how strong the suppression expected is.. In the end just make sure you run the SERM for at least a month !