The Austrian Audio OC16 is a worthy competitor as an all rounder studio workhorse mic. It uses the same capsule as the OC18 which is 2x the price and uses different electronics and is made in China instead of Austria.

Buy the Austrian Audio OC16 (Affiliate Link)
Amazon: https://geni.us/aaoc16
Sweetwater: https://sweetwater.sjv.io/oc16

Buy the Focusrite 2i2 (3rd Gen)- Same Performance as 18i20 (Affiliate Link)
Amazon: https://geni.us/2i32rd
Sweetwater: https://imp.i114863.net/k6g4d

NOTE (FULL DISCLOSURE): As an associate, I earn from qualifying purchases. For more info check my FAQ page links below.

00:00 - Intro / Price / Disclaimer 
00:17 - Setup
00:34 - What’s in the Box
00:57 - Build Quality / Walkthrough
01:31 - Specifications
01:56 - Polar Pattern Test (Tone / Rotation)
02:16 - Plosive Test
02:26 - Distance Test / Proximity Effect Test
02:52 - Background Noise Test 
03:09 - Untreated Room Test
03:30 - Shock Rejection Test
03:51 - Mic Resonance Tap Test
04:05 - High Pass Filter Test
04:39 - Intro to Comparison
05:10 - Audio Technica AT2020 Comparison
05:33 - Rode NT1 Comparison
05:59 - Lewitt LCT440 Comparison
06:34 - AKG P214 Comparison
06:59 - sE Electronics 4400a Comparison
07:35 - Austrian Audio OC818 Comparison
08:21 - Neumann U87 Ai Comparison
08:47 - Music Test
09:51 - Pros & Cons
11:06  - Overall Thoughts
13:17 - Recommendation
14:18 - Outro