What is the best way to increase my testosterone level without androgel?

Depends . . .: The best way to increase your t w/o using AndroGel depends upon several factors, including cost, injections & future fertility. Least expensive is injectable t but the down side is the (at least) weekly shot. Any less frequent & you end up on rollercoaster as your levels go up & down. Btw, if you don't want androgel, that means no axiron, Fortesta & testim, right? Consider HCG or clomiphene, too.

Anastrozole may help: Some guys have low testosterone (t) and high Estradiol (e2), especially if overweight. Fat tissue contains aromatase which converts t into e2. If your t divided by your e2 (t/e2 ratio) is under 10 you may be able to raise t and lower e2 with Anastrozole 1 mg a day (off-label use). This is a better choice than testosterone replacement if you want fertility, but sperm improvements are often modest.