Why would you want orals-only? many beginners make the mistake thinking that orals are safer, when in reality, is the other way around.
of course, there are some orals safer than some injectables (if talking about specific steroids), but generally, injections are safer.
and yes, testosterone is your best bet. If you don't want to pin too often, go for Test Cyp and use it only once a week (preferably twice weekly). So in a 10 weeks cycle you'll have only 10 or maximum 20 pins but you'll remain safe and yield great gains. with a good diet and workout, of course.
what are your stats? age? for how long you've been working out/dieting?