Don’t think anyone here would suggest Nolva or clomid as a test base, they stimulate your own production, they don’t introduce test to replace what you aren’t naturally producing due to suppression (which is what a test base is)?
I’m still learning here so happy to be corrected.....
Pinning test is the best base
Trest is the next closest but not for beginners and has high conversion which needs to be managed
4-ad is a one step conversion to test (rather than 4-andro which is a two step).
If you lay out more detail (age, cycle experience, lifting experience, body composition, cycle goals, cycle plan, pct plan) people will be better able to answer questions for you bro