There a Proto for Seekers Units?
The Triton is specifically described was an escort for Seekers, and while not very fast, it is durable and most variants are well-suited to extended operations.
In my head, such an escort likely sees little action in Clan-held territories where a Seeker can Trial for needed supplies or access to areas(in such cases they likely act was guards for the Seeker camp or DropShip), but in non-Clan areas or in the wilds not held by anyone, a point or two of Protos gives you much-needed eyes on the ground and bolsters your little force against pirates, other rogue forces, or even wildlife, all without adding more BattleMechs to your bid.
The Triton's Proto of the Week article is pretty good reading if you want to learn more about it.