I only feel the need to fuse for Taus when I’m low on them. Only had to do that a handful of times. When you have as much playtime as I do they start to build up without the worry of running out.

Took me a bit of time to add them all up but here’s where i’m at including what’s been slotted:

Tauforged Red: 38 Blue: 20 Yellow: 42 Purple: 11

Regular Red: 49 Blue: 64 Yellow: 52 Purple: 5 Green: 10

So i have a bit i suppose.

Best non spoiler tip for dealing with them I can give is this. Damage resistance doesn’t mean much when you hit them physically hard.

Sorry for the late reply. Looks like the majority of what you still need to level is Prime things. If you weren’t already aware those can be acquired from Void Relics. A large majority of the ones you still need to level are vaulted. Luckily two frames and their associated weapons are un-vaulted each month. You can check to see which are from the market in your ship under Prime Resurgence. Or by going to Maroo’s Bazarr on Mars and talking to Varzia.

The next large chunk of items are the Kuva and Tenet weapons which you get from the Lich system. This would probably be the most time consuming behind the Prime items you’re missing. For a full run down of how that system works i would recommend just checking the wiki page.

The rest are kind of scattered about so you can always refer to the wiki as to how to acquire them. The one exception to that would be the compainion weapons which you will get from building the normal and prime variants, leveling the Sister Hounds (which you will get from interacting with the Lich system), and leveling the Moas from Legs in Fortuna.

Hope that helps!

LR4 here, the screenshots might help with suggestions on how to obtain things in a timely manner. One thing to note though is that a lot of veterans like my self who have been playing for close to 10 years have been able to pace ourselves with the release of content to some degree. So while the total number of MR based items may seem high, it wasn’t always the case.

To add on to this, while I dont personally use that site for builds it can be a good jumping off point for showing what frames want what and then you can adjust to taste. Another very helpful operator arcane that I like having as my oh shit button is Magus Repair.

Realized I just missed the part where you said you’ve been using Galvanized mods. My bad. What MR are you currently and I can make some weapon recommendations.

As far as weapons go you’ll want the Galvanized mods. You can get those by doing arbitration missions which cycle every hour. In those missions a specific enemy called Arbitration Drones will spawn. They are immune to all warframe abilities and give that immunity to nearby enemies. When they die they have a chance to drop a material called Vitus Essence, which is used to buy the Galvanized mods from the Arbiters of Hexis syndicate at a relay. The mods you’ll want to prioritize are the multishot ones.

As for your issues with your frame survivability, you’ll have to give some more detail on who you’ve been playing and I can make some suggestions for builds.