A great video to learn about many many filament types.
02:32 - PLA
03:22 - PLA+
04:02 - High-Temperature PLA
04:44 - Silk PLA
05:27 - Rainbow PLA
06:10 - Color-Changing PLA
06:37 - PLACTIVE
07:43 - PLA Composites
08:09 - Marble PLA
09:02 - LayBrick
09:37 - Wood PLA
10:11 - Glowing PLA
11:00 - Glowing PETG
11:11 - Glitter PLA
11:57 - Sparkly PLA
12:28 - Carbon Fiber PLA
13:18 - CF-HTPLA
14:06 - Conductive PLA
14:55 - Metal Fill
15:56 - Iron PLA
16:30 - Stainless PLA
16:50 - Brass PLA
17:12 - Bronze PLA
17:37 - Copper PLA
18:04 - Hobbyist Filaments
18:15 - PETG
19:06 - T-Glase
19:49 - PolySmooth
20:15 - HIPS
21:15 - Polypropylene
22:29 - ABS
23:46 - ASA
24:37 - Acrylic
25:29 - Special Purpose
25:34 - Purge Filament
26:27 - Cleaning Filament
26:56 - Flex Filaments
27:20 - TPE
28:22 - TPU
29:12 - Ninjaflex Cheetah
30:02 - Engineering Plastics
30:17 - Polycarbonate
31:39 - CF Polycarbonate
32:33 - Nylon
33:45 - Alloy 910
34:36 - CF Nylon
35:17 - Delrin
37:42 - Superpolymers
37:47 - PEEK
38:05 - PEKK
38:16 - PEI