Replacing old Cisco 2901/K9 that serves as a router on a stick. What is a good cost effective replacement?

This environment has around 70 users which are all connected to Cisco 2960 switches. Those switches and the firewall are connected to one core switch which then forwards packets to the ISR for routing functionality between VLANs and to the firewall. The router on a stick works fine but it is getting up there in age and there is a desire to replace it and try to get a little more performance when they start using VLANs instead of one flat network.

I come from a Juniper world where if it was a small shop I just did all the routing on the SRX firewall and called it a day OR in a larger environment the core switch would also do L3 routing.

We are hoping to get 400+ mbps L3 capabilities. Currently we can do 500 mbps to the storage arrays over L2 but we max out at around 250 mbps when doing L3. Firewall replacement is happening in 4 months.

What is a good bang for the buck option for routing? Just add L3 license to the Cisco c2960? Get a Meraki 24-port switch? HPE? Ubuiti? Ideally it would have at least 7 1gig ports so we could hook all the switches, the ISP, and firewall directly up to the router. POE is not necessary.

Thanks in advance!