We have made the VictoriaLogs stack for storing logs and the main goal will be to collect logs from k8s.

At the moment the product is ready and shows itself very well (does not require resources, compresses data very  well)
https://docs.victoriametrics.com/victorialogs/

Among the features - supports many protocols for data insertion (including native syslog, promtail (and all variations of this name), elasticsearch, examples of how to write through standard log shippers).

VictoriaLogs has visualisation in Grafana and its own UI + query langues, which allows you to basically do whatever you want with logs (filtering analytics slide/dice).

We plan to release the cluster and officially announce that everything is ready on Kubecon NA this fall.

The Roadmap: https://docs.victoriametrics.com/victorialogs/roadmap/

As for important things: cluster support for s3, alerting and operator (now only helm chart is available).
We'll be glad to get feedback at our telegram community @VictoriaMetrics_en or at https://slack.victoriametrics.com

The code is here - https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/app/victoria-logs (monorepo for VictoriaMetrics and VictoriaLogs)