Going to be a new father this coming July!

Here’s the situation; I am a Union Pipefitter apprentice I’m 29. I make about $39.
I’m only in my 4th/10th pay period. $3.5 raise in july. And every 6 months. Till I reach ~$70h/hr

I’m putting away 4/hr into HSA plan, and 6/hr into my 401k.

I have been maxing out my ROTH IRA every year for 3 years now.
I have a acorns, fidelity brokerage account, Fundrise, and crypto.com account

Savings of-~10 k

0 debt and pay off my credit cards in full every month. With charges just to keep them active.

Here is my monthly budget so far.
Phone-50
Insurance-70
Apple Music -15
Gas -100
Internet-35
Fidelity brokerage-500
Acorns’ s&p500-500
Fidelity Roth IRA-500
Crypto.Com-250
Fundrise-320

Total-$2340
Income-3600
Left-1260

Gross 73,133
Net-43,200

*New spending*

I’m splitting rent of 2600 w/ my partner.

My weekly 40/hr net check is $900.11

How much money a month should we be saving? Rather than investing long term?